I have said this in other posts as well. In my opinion, creeper is ABSOLUTELY the easiest easy map, no question. Mushroomland medium is also insanely easy, with pretty much no semi-defficult jumps at all. I personally like spaceship hard map, it's really fun and smooth, and very easy. Expert it would either be slimepk or shatteredworld, I kinda grind them both. shattered world is really long, but almost no hard jumps. Slimepk is way shorter, and has a couple kinda hard jumps, mainly in 1 or 2 checkpoints. Hope this helped! :)