I'm not sure this is the right thread, but I've got some (tactical?) thoughts.
Peach's punish game is what makes her so terrifying, having a large variety of true combos on pretty much the entire cast. Compared to Brawl, she can actually kill easier. Her approach game is better than brawl because of QFR, Float Cancel FFing, and (from what I understand, this caveat might be wrong) general movement nerfs across the board systematically.
What does Peach do against characters that exploit her weaknesses? She's floaty, light, and dies off the top easily. Her range is pretty good, but all of her really good ranged options are comparatively slow and/or are punishable on whiff (fair, fsmash, etc.). She deals well with projectiles because of floating and the movement options I mentioned, but has historically lost to characters that out damage her (Fox), out range her (Melee Jiggs Bair, Brawl MK), outmaneuver her (Melee Falcon), or all three (MELEE MARTH).
What do you do against characters that:
- Are hard/virtually impossible to punish on things that give the opponent character a high reward for such a low risk (making her punish game less effective)
- Have large amounts of kill power from a variety of places
- Can outmaneuver her/play aggressively against her off the stage
- Have fast disjoints/ranged attacks that beat her options in neutral (this one is heavily important)
I'm honestly thinking about Smash 4 Meta Knight mostly, but there are other characters I could see being a problem (especially with the nature of a patchable game where Marth could become a nightmare again). I'd wait for the MU discussion to go to MK and post my thoughts and findings there (Note: I'm impatient and forsee MK being a huge problem for Peach and the meta in general), but tactical discussion on the general things that make MK seem to give Peach a hard time seemed like the appropriate thread.
Tl;dr What are her tools against something fast, hard/almost impossible to punish, and clanks with turnips like MK's dash attack or something akin to that?