Suggested by iKnowledge Darth Sidious is a powerful Sith Lord and quite possibly the strongest one of all time. His Force lightning is only the tip of the iceberg in terms of what he can do. The Force is quite versatile and Sidious also has super speed, strength, and can do just about anything. I would still give Martian Manhunter the edge though. His power is leagues above anything Sidious has ever done. Manhunter’s weakness to fire will be tricky to get around, but he does have a lot of experience so that should help him navigate through this fight with minimal issues. It won’t be easy but it’s a winnable battle. Martian Manhunter wins.
DReager1.com 
Based on these;https://comicvine.gamespot.com/profile/silver2467/blog/emperor-palpatinedarth-sidious-respect-thread/63101/, https://www.reddit.com/r/respectthreads/comments/al12ff/respect_emperor_palpatine_star_wars/, https://comicvine.gamespot.com/profile/shootingnova/blog/de-palpatine-darth-sidious-respect-thread/101798/, and https://www.reddit.com/r/respectthreads/comments/1ua7lx/respect_darth_sidious/, as well as https://i.imgur.com/jUZIYbp.png and https://vsbattles.fandom.com/wiki/Sheev_Palpatine, Do you think that Sidious would have a fairer fight than previous?
Sidious definitely has a lot of good moments there, but I wouldn’t say that it puts him much closer to taking on MM. Martian Manhunter was able to take on Superman in a pretty even fight in the past so physically he’s still on a crazy level here. Sidious isn’t fast or durable enough to take his barrage of attacks for long.
I can live with that.