You're right, I can't wait to tell Armada, Amsah and Mew2king to just learn Hungrybox's patterns and watch their spacing, that's what they're missing.
Cause they're all infallible right?
Col Bol, Mango, Dr. PP, Zhu, Merc have all taken either matches, sets, or tournaments from Hbox. And those are just off the top of my head.
It's easy to name drop people you know are good that haven't beat Hbox, it's harder to realize they make mistakes and are not perfect.
As far as tier lists goes, does anyone actually know what the 'tier list' is majorly comprised of? Tourney results or character potential?
What makes a good character:
Having good mobility (WD takes care of most of this)
Having a good approach (within human fallibility)
Having a good defense, and options out of it (sorry yoshi)
Ability to rack up % (a mix of the above)
Map control (ability to cover options, sup falco)
Survivability (recovery, resistance to combo's)
Having reliable means to kill (gimps, rest, throw-death combo's, easy-to-land-move to death combo; fox jab upsmash)
Past that it gets into specifics and who's behind the character.
These vary from matchup to matchup.
If you want to look at a specific character, plug one in and see how it does;
Pikachu
Mobility is pretty good, has good speed and wavedash is decent.
Approach I would say is lacking, no disjointed hitboxes, lack luster projectile, aerial maneuverability is fairly decent which can compensate a bit.
Defense is mediocre, no move like shine/UB OoS as an end-all punish. Shield grab is fine, but grab range is short, wavedash is medicre, so again not anything to brag about. Upsmash OoS is nice as a finisher, but the situation to use it (reliably) shouldn't come up very often.
Ability to rack up % I'd say is lacking (severely). Pika combo's are notoriously unrewarding unless you can end it with a smash/UB. Projectile isn't really spamable either. Combine this with a mediocre approach and I'd say this is one of pikachu's biggest downsides.
Map control is low-average. Speed is meh, projectile is meh.
Survivability is pretty superb. Not super light, recovery is very nice, probably average combo-ability (as in, between luigi & falco)
Reliable means to kill, pika gimps are really nice, on stage kill moves are lacking, landing a smash attack is a lot harder in practice than in theory. Edge guarding is nice. Overall I'd say average as far as killing goes.
That, to me at least, is what is important in a character. Obviously I don't have extensive pikachu knowledge, and some of the information I listed may be inaccurate, but it's more of a template.
Understandably there are a lot more factors when considering a character, but yea. A rough overview of my PoV of judging how good a character is.