Tennant as Who.

[PointyHairedJedi]

I think that plays rather well, actually. It fits nicely with the wider established continity of the present new seasons, but it also harkens back to earler times, even possibly more so if you're one of those who are of the belief that the Doctor really is a reincarnation of the Other. I know how popular that is with some circles of fans, but given that it doesn't actually push that position in any explicit wat I think it keeps everyone happy. Unless of course you're someone who isn't a huge fan of the form the new seasons have taken, like some around here I know. :P