While Mario Odyssey is a little tedious to 100%, the other Mario games are awesome for that. The secret levels and puzzles are usually the most interesting and challenging.
The other mainline 3D Mario games have 120 stars is a classic “easy” 100% to get. The Mario 3D Land games and New Super Mario Bros games usually have explicit stats on each level about how many secrets you’ve missed. Mario 3 and Mario World have more esoteric secrets, but everything is telegraphed if you pay attention to the levels.
Best chance would probably be Gretchen Whitmer or Andy Beshar. There are a bunch of possible boring candidates that would smoke trump.
Funniest would be Eric Adams.
Gavin Newsom is, imo, unelectable on a national stage, and is probably actually a worse choice than just sticking with Joe Biden.