Sorry to bring up some Sheik salt again, but I am starting to find her kind of ridiculous. Pretty much everything has been said but what I feel is the biggest issue is the absurd safety of fair.
IMO any time one move so thoroughly invalidates (by making them sub-optimal) so much of a characters moveset, theres a problem. Why do anything else when fair always has the best risk/reward? All it really needs is like 1 more frame of landing lag, something to make fair walls actually managable. It is my single gripe but its a big one for me.
Diddy shares, to a lesser extent now, the same sort of problem with his fair and uair, and once players get better at utilizing the banana for kill confirms, people will realize that he is still top5 so long as those two moves retain their absurd frame data and hit boxes. Heck Im all for reissuing some of their kill power if theyre made less braindead to throw out.
Since Luigis been brought up, I think he is very well balanced, but wouldnt mind something like increased kbg on downthrow, (its not set kb right?) or possibly less hitstun on it, something to give some counterplay to his grab kill confirms. It seems like d-throw to cyclone is nearly guarunteed, and I would like to see some options available for the one being thrown. At least Ness has to grab you near the ledge. Of course it might be escapable if done correctly and I havent seen it yet, in which case Luigi is fine, l2p.
Last bit of salt, I still think Rosalina is way too good at avoiding people without Luma. The only way I can think of balancing it between competitive and casual though would be through something like a scaling Luma respawn timer. First Luma comes back in 12 seconds, then an additional 2 seconds for every Luma afterwards, resetting with a stock. Would really reward players for consistantly targeting Luma and punish Rosalina players who cant do anything without her.
Anyways, as always, others opinions are much appreciated.