JoJo said:
This is a personal list I've compiled from other people's suggestions, though I haven't had time to check them out yet so I can't vouch for if they're any good or not.
Dailymotion
Their search function has never been any good and their video quality is ass compared to YouTube. It'll do in a pinch, and in terms of pure purpose it's definitely closer to YouTube than any other, but a better site would definitely be nice.
Vimeo
"No screen-captures of video games or gameplay videos, even if edited. (Exception! Game developers can upload examples of their own work. Machinima videos with a story also are allowed, but must be labeled as such in the video description to avoid deletion.)" In other words, great for non-gaming content, worthless for gaming content. They also have annoying limitations for free users.
Twitch.tv
They don't have any means to upload video files; all content is (or was at time of recording) 100% live. This is no pace for edited content, such as reviews, glitch compilations, etc. It's also gaming-specific; you can't really use it for vlogs, rants, movie reviews... if you have more than just gaming content, it's not really a good fit.
Game Anyone
This site seems decent and has a strong community, but it's pretty much only Let's Play type content. No reviews, no non-gaming content. That said, I could see it easily becoming a haven for the LP community.
Blip.tv
They traffic primarily in episodic content. While some gaming videos qualify, it's a lot harder to stay on there. It might be an okay place for some YouTube peeps, but not most of 'em.
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When it comes right down to it, I can't see any one video site taking YouTube's place, even with the direction YT is going right now. Dailymotion is the closest, but they need to get their act together for video quality and better search features.
My prediction: Twitch moves from a streaming focus to a general gaming focus, allowing for live streams AND uploaded content. Combined with the massive publicity they're getting lately anyway, as well as integration with popular games and new consoles, they're in a great position to just steal the gaming market from YouTube. As for non-gaming content, I think it'll end up divided between Blip for the episodic stuff, Vimeo for the more professional but non-episodic content, and Dailymotion for all the stupid random crap.
Of course, if Twitch doesn't do this, the gaming content will no doubt end up divided between Dailymotion and Game Anyone. Sadly, the only one-size-fits-all video host is a bit on the mediocre side, so I don't see anyone TRULY taking YT's place. Oh well.
P.S. Thanks