Re: Who are the top 5 most powerful characters in your Campaign.
"...I'AM THE ROCKS OF THE ETERNAL SHORE, CRASH AGINST ME AND BE BROKEN!" yeah cartoon Apocalypse had some really good lines.
I was going to bring up the Ikaris thing but you beat me to it. I'm not sure if Thanos has ever taken on an Earth-born eternal.
In a one on one fight I think they'd be close.