Originally posted by DiesldudeSuperboy destroyed a universe and survived a universal blast at point blank range. Nothing sentry can do to hurt him. Superboy destroys thevsentry and if Bob isn't dead also it's a forum win because bob will have to animate him.
Superboy-Prime did no such thing. The Sentry defeated a guy, whose fights could be felt across the multiverse.
Sentry is above a guy, who survived two universes exploding in his face at point blank. Superboy-Prime only survived one explosion, which then set off a chain reaction, which then destroyed the universe. Massive difference right there. In one instance two universes explode in a guys face and in the other instance it's not even a universal explosion, but a much, much, much, much smaller explosion, which then goes on to set off other explosions in a way, which then destroy the entire universe.
When you rip off your own head apart and then proceed to live as a scary looking brain... When you get that brain of yours totally smushed in, but are still totally alive and regenerate a second later... Then there is no killing you. If Doctor Strange doesn't know how to kill you, then neither can Superboy-Prime. And Doctor Strange can summon Cosmic Horrors, which insta-kill Superman-stand-ins. That's how vast the difference in power is between these characters.
Sentry is Superboy-Prime on steroids. It's not even a contest.