Best flash player on ubuntu?

When I encounter a flash video in ubuntu I get an option to install 3 different swf players:

• Adobe
• Swfdec
• Gnash

Which is the most stable and preferred player?

From ubuntu grm

• You forget Lightspark. But none of these alternative is really stable and they will usually work on few videos and crash on the others. If you watch lot of video I suggest you stick to Adobe Flash, if you don't watch a lot of videos and don't play online flash videos games Lightspark and Swfdec are good.

  grm : Actaully it didn't appear in the selection screen for 10.10, but thanks for your advice.
  From Nyamiou The Galeanthrope

• Adobe Flash.

  It might be slow but it's still the best of the lot still for feature compliance and stability.

  NightwishFan : I have made progress using Gnash day to day though it needs a workaround (disable cookies for youtube) to play youtube videos. I would say stick to the adobe plugin for now.
  From Oli

• It really depends on many factors. I have the best user experience with the Adobe version.

  However if you are using a 64bit version of Ubuntu, it might be tricky to set up Adobe flash. There's a shell script that helps you in that process. Download it and use these commands in terminal:

  wget http://queleimporta.com/downloads/flash10_en.sh
  sudo bash ./flash10_en.sh
  

  There are couple of updates and modifications to that script you can find it here.

  Nick HS : I **really** wouldn't recommend using that script. Whilst not purposely malicious as far as I can tell, I can see at least one error (`killall -9 firefox` should be `killall -9 firefox-bin`). Why not just use the adobe flash PPA (`ppa:sevenmachines/flash`) that has a native 64bit build?

  AndyB : Nothing against the PPA it's just not known by everyone. I learned now as well. Thanks for sharing. Maybe you might write a wiki that could be beneficial for everybody who just facing the problem.
  From AndyB