It goes as such
1st age-Herald
2nd age-Somewhere between Thanos and Galactus
3rd age - Somewhere around the Silver Surfer, or a little lower
I agree , the first 40 issues he is herald level, then when he killed Malbogia, he was around Galactus, Now he is depowered that based on the last couple of issues, he probably being powered up again. In issue 151-154 he wins against most of the demons in hell.
Wow, my 2nd and 3rd favorite charcaters.......and Spawn (loser). This is tugging at my heart strings here people!!! The biggest problem is the fact that it does say full power. Sinister and Magneto go toe to toe at full power, although as much as I hate the character, Spawn does win this one in a free for all. He is an agent of Hell being powered by both Heaven and Hell making him basically a high level Angel. BUT, knowing the characters as well as I do, I think if this was an actual battle, Magneto and Sinister would actually team up to take care of Spawn, then whoever gets the knife into the others back first would wind up winning....that would have to go to Sinister. Magneto is a villain to the fullest extent, but he does still have a twisted honor with him and Sinister has no qualms about shoving that knife deep!!!