D
Deleted member 231381
Unconfirmed Member
Federer, Bjorg and Sampras were unplayable at times especially on grass.
I wouldn't describe any of them as "dominant". Federer had Nadal and it's hard to be dominant when you're pretty officially someone's whipping boy, Bjorg had McEnroe, and Sampras had various shock defeats to middling players throughout his career. I don't think tennis as a sport lends itself very well to clear domination, because it's all about the margins. You have players who lead the field, and Federer, Bjorg and Sampras certainly did that very well, but "dominated" goes too far. The only truly dominant tennis player is Esther Vergeer.