system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] How powerful would star Lord have been comparatively to other avenger if he still had Egos power within him?
gpt
It's hard to say.  Ego really should have been unbeatable, but he got beaten pretty easily compared to even Ronan.  Remember Ronan was able to tank Rocket's improvised explosive with his face, and still needed an infinity stone to finish him off.  Ego went out with just the bomb.

There's no telling if Starlord would have a similar weak point.  If he does, he's still pretty high tier, but Thor, Dr. Strange, and maybe Iron Man still come out on top.

Otherwise, Starlord is the strongest by a fair margin.