i too think mayweather will win 6th round by tko.
leading up that round conor will have taken a big no of shots and will no longer be able to defend himself, ref will stop the fight.
conor just isnt used to take that much beating.
but then there's always the chance boxing is totally corrupt, so they would need to look for a way for mayweather to barely win so he dont get a loss on his record, but also close enough for a re-match, in that case i say mayweather by majority decision