I don't know their programs and views so I will only talk from the image/impression they give me:
Obama seems like it's full of nice talk and nothing else. He is not inspiring and I don't think he would make a difference, too soft..I dunno there is something wrong with him.
Hillary scares the crap out of me but seems more like a person of action comparing to Obama, plus since her hubby concidered to be a good president I guess he will be a good advisor.
So from two evils I would barely prefer the scary one

As for
McCain he seems an honest man and I have read his brave Vietnam story however some of his views are way too concervative for my taste plus I never vote concervative

In the hard times we live...I see Hilary to be a tough dog and be able to cope with. But I must say none of 3 give me the impression of a potentional great president. HOWEVER, comparing to BUSH..... you can't have a worst president than Bush jr, can you? I hope not!!! The world needs a wise and strong USA.
(I haven't seen the video you give Shamu, no sound at work I will try to watch it from home.)
S.