It really depends tbh
Sequel, tho it is infamous for being blatantly bad and cash grab, there are still many good sequels out their, such as Blade Runner 2049 (pretty sure it is sequel not remake, tho I haven’t seen the first one yet) which is absolutely gorgeous. They are usually done by professional, so there should be at least some redeeming quality in the film (well there some bad case of sequel sucks balls, like BvM, which was terrible in any aspect possible). Also since sequel usually involves the original author writing the story, the product goes with the universe pretty well, and it stay true to the story.
Fanmade is really special imo, since most of fanmade movies are oozed with style and charm, like the Paper Please fanmade movie, which was pretty striking for me. Every single one of fanmade movie is like a love letter from the director and the cast to the subject they are making a movie about, and it is so mesmerizing. Tho the production value can be quite bad most of the time (since it is a fanmade film duh).
Pretty tough choice but I would have to stick with sequel
Sq