You would have to hypnotise them both to not know each other in order to get a true result, I would never hurt my brother to the extent I would hurt someone else. They would hold back, unless one ****ed the others wife/bird, then we have a fight.
First of all, the discussion is not about the Klitschko brothers. Secondly, even if it was, I doubt they'd fight over women.
No. Valuev could fight Wlad on 20the of june, but he said "no" so without a world title Valuev is a worthless opponent and i think he should better retire.