I didn't take this thread too seriously coming in, since it'd be silly to do that what with PM still having plenty of room for character growth. Some of these posts are pretty silly though. I'll pick out a few characters...
Best designed: Lucas, Yoshi, Ivy, Snake, Charizard, Link, and as much as I hate him, that damn Sonic. Reasoning for them individually (
IMPORTANT, THESE ARE ALL OPINIONS AND YOU ARE WELCOME TO DISAGREE WITH ME FOR HAVING THEM, NOTHING HERE IS STATED AS A FACT):
Kinda biased with Lucas, but it seems I'm not alone here. This Lucas is like Brawl Lucas, BUT IF HE WAS IN MELEE. Usually that's kinda figured with most imported Brawl characters but in Brawl Lucas was missing some tools to make him good. Local player and well-known Lucas main Pink Fresh has recently played Project M and with little training already is adjusting to him quickly (He was even in the Project M Apex Trailer!) so I think this is a good testament to what I mentioned before. He has a large branching combo tree with his moves and it makes things a lot of fun when you nail that sick combo or Tokyo DACUS on over for the kill.
Yoshi is an interesting one. He has a great projectile which provokes thought when you should and shouldn't use it. Egg toss is probably one of my favorite moves to use with him. It adds a lot of pressure to his game in tandem with his retooled Egg roll. This move needed a change badly, so the devs taking it and turning it into a recovery tool as well as an onstage opener was a great design choice as it has multiple uses now. I think it's well balanced in that a lot of moves can stop it on incoming if you use it too much/from too far away. His tongue length for Grab, and Egg lay are also great, the cool-downs are good and seem perfectly fair. Yoshi with an OOS is amazing, and once Yoshi mains figure out how to utilize it fully I'm sure Yoshi will get even better. He still has weaknesses which can be taken advantage of and I think he's pretty fair over all.
Snake in Brawl was kind of boring. I should know, two of my main training partners mained him, so it was pretty much a Snake gauntlet whenever we got together to train. His playstyle was fairly straight forward and a lot of moves didn't need to be used. PMBR has done a great job with this Snake, however. I think the best thing they did (especially with 3.0's release) was make Snake FEEL more tactical in the game. From fixed Throws and the ability to walk while holding someone, to the usage of mines and careful C4 placement (including the new fakeout mechanic) Snake as a whole seems to be a lot more sneaky. That in itself says a lot regarding character design. When I die to Snake I do feel like it was something he earned through careful play and good set-up. He also has a very quick and punishing combo game at lower percents depending on how it starts. Everyone's seen Professor Pro by now, and it's just a shame there aren't a bunch of Snake mains, because he's a fun character to battle and watch (in my opinion of course) Gotta stay on your toes!
Charizard, I don't think, has popped up too much in other people's lists and I don't think he will TOO much, haha. I think Charizard got a lot of changes that made him look and feel more how Charizard would fight from the memories people have about him. Charizard was portrayed as fairly quick so I definitely appreciate how quick he is in this game. He's also got powerful looking moves that are satisfying when you land them. Some people say his combos are easy or, god forbid, automatic, and in my opinion, Charizard would probably only use a couple moves if it was working anyway.
I think his combo game, while somewhat simplistic, is still a lot of fun and not at all 'braindead' Is he the best? Not at all, but I think the PMBR designed him very well.
Link has never been that good, which is a shame considering a lot of people that play Smash are probably really into Zelda too. However, over time I think Link has developed to be pretty damn good in his own right. Link utilizes the multiple projectiles he has to harass the opponent and open them up for his combos. Transitioning from projectile usage to a sword attacks/combos feels extremely fluid and I think it's a good place for how Link should function in a Smash game. I don't think there are a whole lot of Link mains either, which is unfortunate since only after a few rounds I discovered he was a lot of fun to play as.
And finally, Sonic. Sonic's had some bad history even all the way back from Brawl. PM players will more regularly recognize his performance in 2.5, and here, I think a lot can agree, he wasn't designed so well. Going into 2.6, he was nerfed to an extent, but in my opinion felt somewhat in tact for how Sonic should operate. Coming into 3.0 I think he's (for the most part) well off in terms of design. He's how you'd expect Sonic to play (assuming we don't take spin-offs, like Sonic the Fighters, into consideration) he's lightning fast, has quick attacks to match, and has many little homages here and there. Basically he fights like a ****, which, to be fair, is probably the most fitting for him. His speed and pressure come in quick, his combos are fast, and if you're offstage, you can get gimped in the blink of an eye. So even though I personally don't enjoy FIGHTING him, I can recognize that the PMBR did a pretty good job with his design.
In terms of THE WORST designed characters? I definitely have to say Olimar. I think the PMBR did a pretty damn good job across the boards, but Olimar is... Just not good. And to be fair, it's not wholly their faults considering what they had to work with. A few things here and there were pretty nice (Fast whistle for organization, Pikmin strengths scaling with their growth) but as a whole he just doesn't have oomph. He doesn't need to be super flashy and really fast, but he just doesn't seem fully fleshed out. I'm interested to see where he goes, and I wish the devs the best of luck with him.