I guess it’s a matter of taste, and taste is often connected to what you are used to.
I like change. That could be the reason why I like Ianto’s playing on almost any MK song, even Speedway, (but MfN not so much, there I miss Omar Hakim or whoever plays on the original). He is no doubt a master of the drums, and I guess «better» than Danny and Terry, but who cares. It depends on what you like.
MK live drummers from best to worst in my own very personal and subjective opinion:
Pick, Ianto, Chad, Danny, Terry and Chris.
Sax players: Mel Collins, Nigel, the one who plays on this tour (great), Chris (not so great).
Pianists: Matt, Jim, Alan, Geraint.