I don't think his being "the Doctor who regrets" demeans him, just gives him greater humanity. He's always apologizing to people who get caught in the crossfire, and even rewrote a fixed point in time in an attempt to save the Mars crew. (and he whined because fans everywhere were whining. lol)
True... He was the toughest Doctor and very cold at times so I give him props for that.
Tennant looks the part better for me than anyone except Tom Baker. But the story line with Amy, Rory, River, was just too good.
Yeah thats where it really hooked me was how much better the writing got for the 11th Doctor. His personal style is cool but the Fez goes too far...