Vimeo doesn't have the community size that Youtube does, no. I prefer Youtube.
Vimeo has too many issues when you secure your browser (NoScript + FlashBlock), while Youtube works fine still.
When I submit video, it's with decent bitrate MP4 files that Youtube doesn't have to re-encode. Everything is pre-processed for noise (Avisynth+VirtualDub
filtering), deinterlaced carefully (QTGMC in Avisynth), etc.