Take this ito consideration, at 140lbs, bruce was able to hold a barbell, 140lbs,his bodyweight, his hand extended fully, for numerous seconds.
If brock was 260lbs, do you think he'd be able to lift 260lbs, barbell, stabilize it and hold it up?

Consider another fact, brock's not as fast as bruce. Bruce hands, move faster than what the eye can capture. For brock to catch bruce, would be an interesting challenge on itself.
Bruce has also got the ability to down 3 men, one holding a kicking bag, with his fist.
Bruce can also do a sidekick, till the punching bag goes up and hits the wall and explodes.
Chuck Norris once said, bruce could probably be the strongest man ever alive.
Chuck norris, is not weak either, and to regonise bruce as the strongest man alive, probabbly speaks much.

However, it's not worth debating as bruce's gone. He will however, forever be in my opinion, the strongest man ever.