I think Luigi is the most overlooked character in Brawl's cast.
I think Luigi's problem this time around isn't all that different from what happened in Melee. Luigi is extremely good, his problem match-ups just annoyingly happen to be against already top-tier characters, like Meta-knight. (I only consider two character top-tier, Snake and Meta-knight, which I think is fair given tournament results up to this point.)
What I see from luigi, I think he outshines most of the cast. He's got combo ability, fast, lagless aerials, the best sex kick in the game, can double aerial shorthop and even triple aerial in a shorthop (fair fair sex kick). He can approach through projectiles with the tornado and has more weight than lightweights, better KO power than many and an amazing up-B KO wildcard, great standard out of shield options rolls and spot dodges and some of the best recovery out there, both horizontal and vertical(and this is disregarding the 1/7 chance for a misfire auto-recovery). All of this in one package makes him easily better than all of the middle-tier, which is a large portion of brawl.
Finally since hitstun isn't universal and is somewhat character specific and luigi has possibly the lowest sufferable hitstun in the game along with often sliding or floating out of range of most combos makes him arguably the hardest character to combo in brawl- he can drop a sex kick in on somebody during a combo that normally would hit just about anybody else, including basic things like uptilt juggles and even things like Wolf's up-B between the first group of hits and the final kick.
With that all said, his only real trouble comes from a few people- characters like Toon Link and Meta-knight who have fast aerials just like luigi, but also get more range than Luigi does from their swords. Yet despite all of this, Luigi seems to get the amount of attention of a low-tier character that no one really is interested in, like Yoshi. Luigi is much better than the amount of attention he receives would indicate, and thus why I say I think Luigi is the most overlooked character in Brawl.
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