True, Wlad didn't throw combos often. I think Fury's seems faster coz he doesn't throw 'pure' punches, as Dempsey would say, he just arm punches. Not meant as a criticism, tons of HWs do it. I think Joshua is a more fluid, faster combo puncher around that size (Although he's better at like 240)
Depends on what you like, I suppose. When I said faster hands, I meant it very literally; as in, one punch, moving your hand from A to B and back to A as fast as possible. I think he can do that quicker than Fury, but as Seamus has said, Fury has quicker, more fluid combos.
Fury has never been a great combo puncher. He can throw 2-3 punch combo's but not 5-6 ones with any real power. His combos are just arm punches a lot of the time. Douglas at 230 lbs was a far better combination puncher than Fury.
Mattar Garcia the French heavyweight champion have very fast hands and his combinations are well skilled for a heavyweight.