Sentry vs. Gladiator
Fight 1 is
This is the Sentry right before his altercation with Terrax (great mental state). Gladiator starts at planet bashing levels of confidence. Both Sentry's mental state and Gladiator's confidence are allowed to vary as the fight goes on.
Fight 2
Sentry's mental state fixed at the state it was in right before Terrax incident and Gladiator starts and stays at planet bashing levels the whole fight.
Fight is in space inside a 1AU cube of volume. Both know how dangerous the other is, so both are fighting at their best, using speed and other powers if necessary.
So who wins these fights, cosmic axe breaking Sentry or planet bashing Gladiator?