unlike comments yo, i clicked the like button and it ain't letting me unlike my comment....might wanna change that?

"Rated videos list" Make a way so we can check all our rated videos! Sometimes I lose some videos, even videos I had previously rated, I think it would be a great idea to make a list for it. And maybe a (private) list of all the videos the user watched, in case we lose a video or something.

cools suggest ANNOTATIONS AND MAYBE EVEN VIDLII TV

Switching between aspect ratios My suggestion would be to implement the feature of being able to switch the aspect ratio of the player from 16:9 to 4:3 and vice-versa. I think it would be a neat little addition, especially since it's also possible to choose between channel designs and, if I recall correctly, layouts, coming in the future.

Put a option to use the YouTube HTML5 Player I have a few little problems.
1: The Classic and Modern players does not works on my PC
2: In my PC, Flash is slow, because that, the videos in Flash Player are slow
A idea could be put the YouTube HTML5 Player :D