Dr. Strange is the first one out. Potentially he's the most powerful one here, but human durability against 3 guys who can move at light speed, and 2 of them even able to fight at high speeds (Sentry and Gladiator), well...Human durability is his downfall.
Gladiator is the next one down. In his regular state, he'd lose to Sentry physically unless he's confident like he was against Vulcan, and his radiation weakness is very easily exploitable by Surfer.
Surfer's the next one down. Against Morg, Firelord, Thor, Drax, etc it's been shown that Surfer doesnt do very well against brute force which is what Sentry is bringing to the table, and on a level above almost anyone Surfer has fought before.
Sentry wins.