Hmmm.... I'm a betting man but I'd stay the fuck away from this.
The only fight in which I'd confidently pick a winner would be Holyfield over Tyson, but equally, Holyfield wouldn't be favoured against Lewis or Bowe.
Tyson could get rid of Lewis early, considering McCall and Rahman did, albeit neither did when Lewis was at his absolute best from 1996-98. Lewis could use his size to offset Tyson and punish him, Douglas used the jab to great effect and he wasn't in the same class as Lewis in that department.
Bowe vs Tyson is a pick 'em, Bowe would either destroy him or be wasted in the first couple of rounds.... I get the feeling Bowe would really relish this one and would be licking his chops at the thought of facing Tyson, who equally would fancy his chances, considering how bad Bowe's defence was at times, even at his best.
Lewis vs Bowe, you'd favour Lewis, considering Bowe backed out in pretty embarrassing style, but he'd compete with Lewis in a jabbing contest - Lewis could be outjabbed by guys of a similar size.... Bowe was very strong on the inside but again, his defence wasn't great and he could find himself eating uppercuts galore before being rescued.