It's because he doesn't complain and never talks bollocks.
Not just that, the players are all loveable. Enrique, Tiote, even Shola and Nolan have a loveable quality, in that we know they're a bit shit but they do well with what they've got.
What?
Ran into Williamson for no reason off the ball. Got away with it, would have been a red.
Oh and Drogba's shit, and Lovenkrands is a god. (Just for good measure, 'cause I know how you're going to enjoy replying to this ).