The Doctor is

Doctor of the universe, trouble is he has tamed the universe, who will care for it when he's dead and gone

Only one left, he is the last of the time lords after all, as the Face of Boe says 'the lonely god'

Caring for everyone and everything except maybe the daleks and cybermen but they deserve it; he even loves the Master (but who doesn't)

Talented in everything, except maybe not being rude or annoying to people and flying the tardis correctly, he did throw the tardis manual into a super nova

Optimistic, he has to be or he would be severely depressed if he already isn't, instead he's more like a hyper child, like the Master

Resourceful, I mean he has a sonic screwdriver, who would look at a screwdriver and say this needs to be more sonic even if he did have a lot of shelves to put up