Some characters I didn't go over before:
Luigi - Luigi's weird. For one thing, he should never Dash, under any circumstances, his wavedash is purely better. He has some really good moves that start up fast, like Nair and Fair, and a decent throw combo game, but the unusual nature of his approach game makes me unsure of how to rank him.
Wario - Wario is super different, so I need to see more Wario play to know what to do with him.
Samus - In Brawl, Samus is a pokey character who generally aims to frustrate you into leaving yourself open to her powerful (but slow or short-ranged) kill moves. This strategy is not as good in PM since once an opponent gets in, they can put much more damage on you. I suspect she's in the okay group, but I'm not really that familiar with her ice attacks yet.
Zero Suit Samus - ZSS is an interesting character. She has massive range, but a lot of her moves have a ton of endlag. This causes her to look either totally godlike or totally horrible depending on whether her moves are hitting or not. Wavegrab is bonkers though, dat range. Probably in the good group.
Wolf - Wolf looks really good, he's got great tools, speed, and combos. Should probably just go straight to the "good characters" section, but he's so new I'm not totally confident on it.
Squirtle - Squirtle basically seems to be a better Jiggs. He's still got that high air speed plus powerful, short ranged air attacks, except he's packing a bit more power and versatility behind it, especially that upsmash, which hits like a tank. Despite this, he still has some of Jiggs' weaknesses for getting in, so I suspect he's in the okay group.
Charizard - Another one of those characters who's almost completely different. Seems scary I guess, he gets a lot off any hit, and has decent space control. Recovery also seems good, but he is a huge target.
Lucario - Lucario is a shield pressure monster, he can cancel straight out of attacks into an unblockable command grab, which is guaranteed in some situations and scary in others. However, for whatever reason people seem to think he's bad. I don't really get that argument, so I'll hold off on rating him until I see his weaknesses in action.
Ness - He's clearly outclassed by Lucas, but I'm not convinced he's quite as bad as everyone thinks. He's still got some nice hitboxes and PK Fire is a solid projectile. I guess some of the problem is having PK Thunder as your only recovery, it's super gimpable.
Snake - Snake was the god of stage control in Brawl, but I feel he has been outclassed by Ivysaur, particularly since Ivysaur stole his mortar. Tranq is an interesting new move, and is definitely way better than his old side B, but he has recovery problems and I feel like he has issues getting people off of him if they get in.
Sonic - Sonic is so fast that I have no idea whether the stuff he does is really good or if people just don't know how to respond to it yet. One thing's for sure, he's not really susceptible to being kept out the way Captain Falcon is, but at the same time he doesn't quite just kill you for free either.