If we´d merge Vitali and Wlad into one fighter, is he unbeatable?

A fighter that combined the best attributes of both brothers would be nigh on invincible. Just think about the assets such a boxer would have: massive height and reach, incredible chin, incredible punching power (Wlad could hit harder than Lewis according to Steward), great technique, great stamina.

 

Yes and no. Ali lacked punching power as you said. And his fundamentals weren't great either, he simply got away with that cause he was so damn fast.

 

Shavers had power because he sit on his shots and put everything into a punch. If he didn't and punched the way 60s Ali did, Shavers would look like a featherfist too.

 

Yes, Ali would have been fast, but with proper skill/technique and a plan, this hybrid would overcome that and time him.

 

IF and only IF he catch him.

 

Assuming that you combine only the good bits, then yes.

If you combine the worst bits you have an arm punching guy that gasses out early and the only question is whether his iffy chin gives out before his face falls off.

 

If a limited and slow boxer like Chuvalo could land on Ali, then it's safe to say this hybrid would land too.

 

Wlad lost a decision to Tyson Fury. Even with his brothers chin and agression he probably still loses this.

 

@GOAT Primo Carnera
What do you think of "Sugar Primo Robinson"?

 

270 pounds, and every one of them better than everybody else's pounds.

 

Patty Duke as Patty Lane, and Patty Duke as her cousin Cathy. (1963-1966), The Patty Duke Show. You Can Lose Your Mind, Klitchko's, Two Of A Kind.

 

Pretty sure the Marciano + Butterbean combo would smother the big man hybrid. “Brockton Butterbean”?

 

Marciano would get in underneath Vitladko and park himself on his chest all night. Neither ever faced a guy who could get near as low as Marciano and neither ever had to repel a sustained body attack. Marciano would pound away at that long midsection until their hands eventually came down and then go into beast mode with a final flurry to the head with the coup de grace being the famed Suzie Q somewhere around the 11th.

 

OK, you've convinced me.