: Possibly the best character in the game right now. Even at that, he doesn't have any real overly dominating factor about him. He has average KO power, due to him lacking sufficient finishers outside of a banana setup, and while his horizontal recovery is pretty solid, if he gets hit by a relatively powerful spike, or gets stage spiked, that can quite easily end his stock. I think, as the best character in the game, nerfs wouldn't be out of the question, but he doesn't straight up deserve any; he doesn't have anything overly powerful like the Hoo Hah anymore.
: If anything, I feel this is the only top tier character that could do with a couple of changes. Something aught to be done about that Up Air's hitbox timing and AC frames. If they did something like what they did with Diddy's Up Air, it would be fine, such as shaving off one active frame at the start, which would reduce it's ability to hit grounded opponents. Shaving one off the end too would make the move a lot more forgiving, while still being an insanely active hitbox and one of the best juggle tools in the game. Making it AC a frame or two later would be good too. Down Air's active frames should be toned down slightly too. Shaving around two or three active frames off the end would still keep it's utility. In exchange, Cloud's Up Tilt and another move should get a look at a change. Up Tilt should have it's active frames increased by a frame to prevent it's blindspot on poor characters, which makes it's range look pitiful otherwise. Forward Air could also have a frame or two less start up. It's currently got ages of start up, and while it's powerful, it's start up hinders it's usage. These changes I think would make sense, as opposed to fiddling with attributes, as it fixes Cloud's main complaints and his own personal problems.
: Once again, Sheik isn't overly dominant at tournaments any more. She has great combo ability, a fantastic projectile that can outright stop approaches or cancel out other projectiles, great mobility and a fantastic recovery. This is all counteracted by her poor ability to close out stocks, and her combination of being easy to combo (fast faller), and relatively easy to KO (light). Sheik is fine.
: After ZSS's changes in 1.1.5, she's a lot more balanced now. Her Dthrow > Uair > Uair > UpB no longer KO's unless there is enough rage on the Boost Kick, and even then only reliably on stages with lower ceilings. She still commands some sort of respect in Neutral because of Paralyzer and the amount of damage you'll be eating each time you get hit by one, and she still has her great spacing tools, in Nair and Zair. She still has her great DSmash and Flip Kick, fantastic Bair and godlike recovery. However, it's a lot easier to punish ZSS now, with her grab being easier to punish due to it's lower active frames, her light weight and being a fast faller, and with her Dthrow being a lot less useful at KO percents, this balances her out. She is totally fine, more-so than Sheik.
: Rosalina is my main, so I know 100% what I'm talking about here. In my opinion has always been within the top realm. She got hit pretty hard in 1.0.4, and has had a few minor slaps on the wrist since. If anything, the rise of Meta Knight, the introduction of Cloud, and the strengthening of other sword users such as Marth, Ike and Shulk, are all indirect nerfs to her too. Rosalina is unique in that she's arguably the only top tier character who has noticeable problems with certain characters, mainly ones with swords, as they can safely deal with Luma out of her reach. Rosalina is still an incredibly powerful character, one capable of making life hell for certain characters, but she is one of the easiest to exploit top tiers, which people don't do enough of. Like ZSS, Rosalina is totally fine.
: Do I even need to explain this guy? If anyone seriously thinks Mario needs nerfs, you need your head checking out. Has great strengths, with weaknesses that can be. The epitome of a truly balanced strong character.
: Her nerfs in 1.1.6 were pretty severe. It's uncertain where she'll end up on the tier list now, but her combo game is still well above average, she still has that amazing spacing and KO'ing tool in her Bair, her fantastic Nair for forcing approaches and using off stage for gimps, where she still has one of the best recoveries to compliment this. Witch Time was untouched, meaning if you get KO'd at 70%, you are dead, or any percent before, are eating a huge amount of percent. With her death combos gone due to the DABK change (which is now an almost useless move), she does have a tough neutral, and the Witch Twist SDI changes can make it a bit easier to escape her combos. Overall, while she can combo you and KO you still relatively early, she does struggle in neutral unless she's spamming held Nair. Bayonetta is the only character I feel within the top realm that outright deserves a few minor buffs, akin to how Diddy got some of his lesser used kit touched up to make them better. How about shaving a frame or two start up off of her Jab 1 and her Forward Tilt? Or how about giving DABK some actual use? It might be useless for combos, but how about making it her most damaging aerial (not a killing one, just damage). Or even making Witch Twist's SDI to around x1.7 as opposed to x2? That's still a hell of a lot more than x1 it used to be.
I personally think that Bayonetta is at least in the top 15. However, she does need some Diddy style small buffs to make the rest of her kit usable.