I agree with what Inspire said, your audio cut out and popped a lot, making it distracting and hard to hear.
One thing I think you could do to improve the video (although it would make the video longer) is adding some gameplay of the characters you are talking about. Show us why those characters are in your top list along with telling us. I would be more inclined to finish the whole thing if you showed some the characters being played while you talk about them or whatever.
I admire your enthusiasm, it's something I've got to work on. I end up sounding too forced or monotone sometimes in my opinion.
I hope I helped a little, I'm new to youtube and reviewing, so I don't have much expertise to give out, lol.