World's worst airport in 2014 is ...

Readers of Sleeping in Airports voted New York's LaGuardia Airport as the world's 10th worst airport, citing its long lines, drab decor and unfriendly staff. "Once through security a beer is pretty much a necessity. But wait! No can do because the bar is on the other side," said one traveler.

Unlike its fellow European airports on the list, Berlin Tegel International Airport (no.9) isn't just for budget airlines. Good news though. The new Berlin Brandenburg airport will replace it eventually.

"The only way this airport could be improved would be to destroy it and rebuild," one respondent commented on Milan's secondary airport, Bergamo Orio al Serio, which was voted eighth worst.

Germany's first low-fare airport, Frankfurt-Hahn International Airport is also the German base of budget airline Ryanair. It was voted sixth worst airport in the world.

Accessible only by private transport or an hour-and-a-half bus ride, Paris Beauvais-Tille International Airport (tied for no.6) was described by Sleeping in Airports as "cramped, rundown, debatably clean and not particularly friendly."

Uzbekistan's Tashkent International Airport ranked fifth on the worst airports list. "In spite of a few recent upgrades to the departures area, the queues and crowds at TAS continue to be a frustrating experience," said Sleeping in Airports.

After topping the list three years in a row, Manila's Ninoy Aquino International Airport was voted the world's fourth worst airport in 2014.

A warning from a Sleeping in Airports respondent about Kathmandu's Tribhuvan International Airport (no.3): "Just make very sure that you never, NEVER need to use the washrooms in this airport."

Despite being one of the most beautiful airports in the world, Saudi Arabia's Jeddah King Abdulaziz International Airport was voted the second worst.

Islamabad's Benazir Bhutto International took the world's worst airport crown. "This airport is like a central prison," said one respondent.

Art exhibits, an aquarium (pictured) and aboriginal cultural influences are some of the reasons Canada's Vancouver International was named the fifth best airport in the world.

With an airport brewery and beer garden (pictured), we're surprised Munich International Airport only came fourth.

Last year, Helsinki's Vantaa airport introduced a relaxation area with real beds. That might explain its rise from fifth to third on the Sleeping in Airports list.

Credited for its cleanliness, superior customer service and high volume of comfortable seating, Seoul Incheon International was voted second best airport in the world.

For as long as the Sleeping in Airports survey has existed -- 18 years -- Singapore Changi International's position hasn't been challenged once. A glimpse at the airport's rooftop pool might explain why.

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• Sleeping in Airports' annual survey highlights world's best and worst airports


• Airports judged on comfort, conveniences, cleanliness and customer service


• Singapore named world's best airport for 18th year in a row

(CNN) -- Good news for air travelers passing through Manila: the city's international airport isn't quite as bad as it used to be.

That's the only slightly uplifting word from The Guide to Sleeping in Airports, a travel website that produces an annual survey to identify the world's worst and best aviation terminals.

After being crowned worst three years in a row, Manila's Ninoy Aquino International Airport has this year lost its place at the bottom of the heap to Pakistan's Islamabad Benazir Bhutto International.

It's now climbed to the heady position of fourth worst.

Despite the website's name, airports weren't just rated according to how easy it is to catch some shuteye.

Readers were asked to judge facilities in four categories: comfort, conveniences, cleanliness and customer service.

Is Islamabad's Benazir Bhutto International really so bad?

Airport officials didn't reply to CNN's requests for a comment, but survey respondents were less than complimentary.

"This airport is [like] a central prison," said one who complained of touts and aggressive taxi drivers.

The survey ranked Saudi Arabia's busiest airport, Jeddah's King Abdulaziz International as second worst, followed by Nepal's Kathmandu Tribhuvan International.

Manila's climb to fourth follows what many respondents said was a "slight improvement" created by the recent opening of its Terminal 3.

Three European airports frequented by low-cost carriers were next in line.

Paris Beauvais-Tille International Airport and "not-in-Frankfurt" Frankfurt Hahn International Airport tied for sixth. Bergamo Orio al Serio International Airport near Milan was listed as eighth worst.

New York City's LaGuardia International Airport, ranked 10th, was the only U.S. entry to make top 10 list.

MORE: 18 most annoying things people do in airports

The rooftop pool at Singapore Changi Airport.

Airport with a spa

There were no surprises when it came to naming the best airport, with Singapore's Changi International taking the title it's held every year since the survey began 18 years ago.

Its success is credited to the spa, pool, gym, four-story slide and movie theaters that make the airport a destination in itself.

Offering almost as many cool perks as its Singapore counterpart, South Korean's Seoul Incheon International was named second best.

Amsterdam Schiphol and Hong Kong International Airport (last year's third and fourth best airports) dropped out from the top five to ninth and seventh spots, respectively.

Helsinki International Airport, Munich International Airport and Vancouver International Airport wrapped up the top five.

READ: And the world's best airline for 2014 is...

Worst Airports of 2014

1. Benazir Bhutto International Airport, Islamabad, Pakistan

2. King Abdulaziz International Airport, Jeddah, Saudi Arabia

3. Tribhuvan International Airport, Kathmandu, Nepal

4. Manila Ninoy Aquino International Airport, Philippines

5. Tashkent International Airport, Uzbekistan

=6. Paris Beauvais-Tille Airport, France

=6. Frankfurt Hahn Airport, Germany

8. Bergamo Orio al Serio Airport, Italy

9. Tegel Airport, Berlin, Germany

10. LaGuardia Airport, New York City

READ: Breathtaking photos of Hong Kong glory days

Best Airports of 2014

1. Changi Airport, Singapore

2. Incheon International Airport, South Korea

3. Helsinki Airport, Finland

4. Munich Airport, Germany

5. Vancouver International Airport, Canada

6. Kuala Lumpur International Airport, Malaysia

7. Hong Kong International Airport, Hong Kong

8. Tokyo Haneda International Airport, Japan

9. Schiphol Amsterdam Airport, Netherlands

10. Zurich Airport, Switzerland

MORE: World's most scenic airport approaches