I've always said that xTube has been a more community-based porn destination and I think that's pretty true when it comes to checking out their collection of bear material. There are 34,000 clips here, and I'd say that around 90% of them are users of the site that want to share their big, chubby and hairy adventures in front of the camera. Amateur doesn't even begin to describe what you'll get on xTube!
I've linked you directly to the bear area of the site and this means that the only content you'll see is directly related to that niche. You're able to sort all of the content once you hit the site based on rating, number of views, length of the clip and upload date. I personally think that the rating is the best metric - you'll find the cream of the crop where gay bear videos are concerned thanks to the crowd sourcing efforts of the community that share their idea of the best bear scenes on the site.