Paper Mario is still a really bad stage. Especially the Bowser's Castle part.
Also, I think I actually prefer Dark Pit to Pit. He's still an unabashed clone with only very minor differences aside from the silver bow's dark shot, but I still prefer him. Better taunts and victory music, too.
For those wondering what the differences are, Dark Pit is just slightly stronger and his attacks come out a tiny bit faster, but that also means the hitboxes are over faster. The silver bow's arrow can barely be aimed at all aside from up and to either side, but it has considerably more hitstun than Pit's arrows. The arrow itself is a little slower, but larger than Pit's. No idea how the Electroshock arm is different, but it is, if only slightly. Up and down specials are the exact same as Pit's.