Well, 11 isn't bad at all, in my opinion. It's a bit sluggish, but I haven't found any other drawbacks. And Winamp is the best. The only thing that bothers me in the latest version is that it appears in the taskbar. I also really like AIMP2.
The design is better than in previous versions :)
What I like about it is the library :) everything is nicely arranged, with pictures :D