Julian Barratt as the Doctor sounds a bit ace, and perhaps more likely than my own secret fantasy of having Bill Bailey in the TARDIS.
I mostly enjoyed series 3 of The Mighty Boosh, anyway. The weakest episodes were the first and last (excluding the mad Eels song, which was ace), and everything inbetween was a joy. The crackfox, Vince's immune system, all the crimping, Naboo's cookery spot and the return of Saboo and Tony Harrison; all of these things made me happy. Sammy The Crab was utter shite, though.
I do agree that it has become a bit like the Noel Fielding Show, which is a shame, as I've always felt it's Barratt's music that propels The Mighty Boosh into the extraordinary. Ah well.