Hylian :
Samus can't Ledge-C Up-B's OOS as flexibly, but at least she can Roll now.
The range on her Grab shrunk, which was what made it work safely and efficiently, even when it comes out fast like PM, it's still slow, and is easier to avoid with everything from spacing where you land from jumps, or [tech]-rolls and WD > dashes away and dodging, etc.
Then there's bigger stages everywhere, and she can't exactly corner a Fox/Falco/Wolf to force them to do anything.
She could already do great things with a hit, but do Rolls (the Crawl rolling/attack too), and something Ice gives, actually allow her to GET those hits better?
Maybe F-Air is a great trajectory she can end things in, or U-Smash [a floaty-finisher if anything] can combo them [she doesn't really need help there] more or something? Even then, are those maneuvers with Roll-stuff [she gets so small!] enough to make a big enough difference to say she does 'Really' well against them now?
Like... the invincibility on Shine gone doesn't even help her as much as others, and her recovery is even easier to punish for everyone in the game without Melee-tethers, let alone spacies... though that's not a big factor since it was meh anyway.
Canon: She's better, but what's a kajillion? It looks like a smooth and moderate improvement to me right now, at best, especially in relation to the rest of the cast...
Has anyone managed to get out of Ness' d-throw shenanigans consistently? I'd really like to know cause it's annoying as all hell
A little more wiggle wave-lands out of tight situations could be abused across the entire player-base, but otherwise, there's no tricks to it. Ness is a vortex...
Edit: Roy can kill easily enough that he won't be terrible. Seriously, be really liberal with F-Smash. Anything and everything links into it, you don't need to extend super-combos, just a hit into F-Smash at 20% and you've won the stage-control, then can speed/hit-box spam and if anything connects, it's another F-Smash for free. Everything connects well in short bursts, just cut those bursts shorter and end it.
Side-B Forward > Side-B Up > Side-B Down, is easy enough to link into after any aerial or Grab-chase or whatever too, and the trajectory + KB on that is silly. He makes everyone NEED a Brawl recovery, because of how hard and silly-angled those hits are...