I meant to do this a while ago:
I wanted to build my own web app as a learning exercise, and it's certainly been that. I also wanted to build something that I'd really find useful.
That became the beginning of BlakeyTV, a not-very-creatively-named video player that will let me keep up with everything I want to watch on YouTube. I just enter a list of YouTube user names that I want to follow (similar to your YouTube subscriber list, just manually entered), and every 24 hours that person's newest videos are added to the front of a never-ending queue of videos that will play back-to-back with no ads.
Here's a list of people currently in the rotation:
Theshadowloo (Street Fighter IV)
bigirpall (Battlefield 3 trolling)
XboxAhoy (In-depth Call of Duty analysis)
OldSpice (POWERRRRRRRRRRRRRRRR)
Bungie (Makers of Halo)
Mega64 (Gaming comedy)
Day9 (Pro StarCraft II)
TeamSpooky (Street Fighter IV, MVC3, Tekken X Street Fighter)
Freddie Wong (Mostly gaming-related comedy)
It brings to YouTube what it's missing as it tries to get taken seriously as a media delivery service: a completely passive option that requires no user action.
For all of you, people who are not me, I hope there are two possibilities:
1) With time and suggestions, it becomes a generally well-curated site with consistently good videos that lots of people like
2) I keep working on it and create the ability for people to create their own channels
I think those two aren't mutually exclusive. If you're a programmer who can handle Python, Django and Heroku, please let me know! I'd love a little advice in building up the backbone necessary for new features.