Cool new list, love the descriptions you added. I would however just like to say a few things.
First; You talked about Thanos and his Infinity Gauntlet, though Im not sure if youve read it but he has been MUCH stronger than that. During Marvel: The End, Thanos gained the power of The Heart of The Universe(Also known as The Heart of The One Above ALL). This was the heart or essence of TOAA(The One Above All). This made him almighty on an Omniversal scale. He was at this point either equal to TOAA or only slightly behind. He absorbed the entire Marvel Universe and became its supreme being. He also absorbed every being that faced him, including all of the celestials and The Living Tribunal. Heres the scan of him doing so.
Now you dont have to change his position, and yes the Gauntlet is more iconic. But just know he was MUCH more powerful than with The Gauntlet, as the gauntlet only worked on a universal scale and was turned off with ease by TLT while THOTU was able to beat everyone on a Multiversal scale.
And second; Galactus isnt actually a villain. Hes the being which keeps order in the universe by eating planets. If he stopps the universe will go into chaos and end. Also he is compelled by thee true villain known as "The Hunger".
Also if referring to how SBP beat Anti Monitor. that was the recent version whom is nowhere near as powerful as he was at his prime. Hes also back right now, hes involved in both the Blackest Day where he was revived, and he was shown in Brightest Day recently in his universe he rules. Also I would like to point out that Superman is more powerful or as powerful as Superboy Prime, as he has beaten him recently by himself, including his future form. Idk where I myself would place him, but I just wanted you to note for your list.
Other than that its pretty cool.