Roy is too low. He should at least be in the middle of mid tier.
Roy's hard to place because there's literally only one Roy worth caring about and that's Sethlon. As such, the amount of good Roy footage out there just isn't nearly as much as with other characters. Sethlon has made him seem decent on occasion (much as Vist has done with Luigi), but they haven't been winning tournaments with them or anything else that forces you to take notice. If a character usually looks bad but looks okay when played by a master, they're probably low tier.
Characters don't need good tournament results to show if they are viable. Just having a recording of the character DOING something is enough. It could be friendlies or, to a lesser degree, lab work showing that the character is capable of performing.
I do consider a character's toolset as well, but at some point someone has to prove that the tech is useful in a real match. If the execution barrier is so high that no one can do it consistently or the situation needed to pull it off is too impractical, it just won't really translate into results.
Also, don't forget that most good characters also have crazy lab tech that few people can properly use yet. Look at all the nutty stuff Fox and Falco can do with waveshines and multishines, for example.
Donkey Kong is amazing, talk about combos. He's almost like Mario if Mario had the range of a sword, just not quite as good and easier to gimp/combo.
The problem with Donkey Kong is that while he has amazing combos on pretty much everyone, everyone else also has amazing combos on him (even if they don't have great combos in general), so his offense doesn't really shine as much as it could.
Sonic seems to have risen on everyone's tier list confirming that people weigh tournaments fresh in their mind too heavily.
It's not just that Wizzrobe placed well at CEO, but he showed a level of Sonic rushdown that had never been seen before. That being said, I'm not willing to jump on the "Sonic is top tier" bandwagon just yet, Fox clearly had answers to Sonic's approach and I think most other characters with good hitboxes do too. Sonic has great pressure but his hitboxes (save FTilt) aren't really that amazing.
TBH, I just haven't seen any Link player not rely on the boomerang like crazy. Kinda makes me think his meta is built around it.
If I'm wrong and someone has evidence to prove it, I'll gladly revoke this statement.
It is, but it's better than his previous meta which was based around losing.
I don't think Kirby is good, but I do think that Chu's swallowcide ledgecamp nonsense is asinine. Maybe if that wasn't such a powerful, binary tool, the PMBR could afford to make Kirby actually good.
I totally agree with this. The buff to Kirby's aerial maneuverability after inhaling was completely stupid, that buff solely exists to allow him to ledge camp with swallow more easily.