I like the new page; it's clean, and I love not having to scroll through a small box of related videos, and it's nice having the video right in the center of the page, with no cruft surrounding it. And being able to get to my favorites page easily is a big improvement in usability, for me anyway.

There's a lot of complaining, but I think most of it is just people being temporarily pissed about having change suddenly thrust upon them. A month from now, everybody will be used to the new page layout.