Since I keep saying the same thing over again whenever anyone asks my opinion of the new Doctor, I'm just going to put it here to point at.
Well, as happens every time there's a regeneration, I say, "So who's this guy? He'll never replace my Doctor!" My Doctor tends to be the current one of course after a few episodes for me to get used to the new him and for him to get used to the new him. Every Doctor holds a special place in my hearts (which are TARDIS-like in their capacity). The real question is "how will he dress?"