For the first part, NO the UFC should not have a openwieght turney. Because Lets say Carwin and BJ got matched up. Bj is the better fighter but he could not handle the 8 inch reach prob plus the power prob plus if Carwin got on top it would be over.
Size is a mutherfucker.......lol
next part if it, the UFC (current roster)happened my 8 would be......
Brock ( i hate this but he is in it)
BJ ( got to love the dude)
Just my thoughts and trying to fair by weightclass
"...for he today who sheds his blood with me shall be my brother." William Shakespeare
"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it." Helen Keller