Gennady Golovkin. If he's not your favourite boxer, he should be.
Never watch boxing and I don't know who this is but I'll give it a go
PrettyBoy - Pernell Sweet Pea Whitaker
Can't be touched - the Defensive GOAT
http://youtu.be/rw1t2yAK_wU
I'm talking about active fighters but yes, I agree with you on Sweet Pea -- GOAT defensive boxer, hands down.
MolsonMuscles -I'll go ahead and quote OP, because GGG is my favorite current boxer. He's really rejuvenated my interest in boxing, and I cannot wait for the 26'th!!!
Gennady Golovkin. If he's not your favourite boxer, he should be.