Folds hard to fox? Idk man, the matchup was slightly in fox favor in melee and fox got nerfed notably, marth got only one very slight nerf, and has gotten buffed overall from the different physics. (better shorthop double aerials options, has better use for b reverse tech etc.) Marth can't take fox to FD as often, but I'd say the rest of the stage list is better for marth overall for that one matchup. (at least for the ruleset in my region, idk about yours) idk about the r.o.b. matchup, but it can't be that bad.
Also, I feel I did stick to that formula for a tier list overall. There are so many characters being played overall, and it's nothing like melee where you'll see a sea of the same four characters, with the occasional other one. I actually almost never see fox players in my region (THANK GOD). Basically, it's not like melee where you see nothing but top tiers for the most part. PM players play a much wider range of the cast more frequently, so mid tier matchups are much more important than in melee.
some waifu cosplay type chick came around during a local melee torny. I had the only PM set up in the room, so she and her friends came over with that damn zard.
shocked those of us that were playing. no one could beat her zard is defs a higher teir
A GIRL BEAT YOU AT A VIDEO GAME?!?! OMFG THAT CHARACTER MUST BE SO OP!!!!!1!111!