I think that this would be an eternal stalemate, unless I completely read Omega wrong there really isn't anything that Trion could do to him and vice versa. Omega was so fast that he could travel a light year by taking one step, they are both nearly invulnerable to all forms of injury, Omega was able to remain unaffected by an antimatter explosion. This fight would really depend on who was tougher than who, and neither have enough feats to back up any debate on the latter.
Stalemate.