Luigi's recovery isn't really that great, though I haven't seen/played too many luigis...
What... r u talking about Melee? I'd really recomend playing better/more Luigi's. Luigi has an awesome recovery in Brawl! He can use his B-up, B-down, or B-forward all as recovery moves.
I think it could be Luigi not only for the afore mentioned reasons about his great recovery. His f-smash is good by its self, but when combined with shudder-stepping and dash canceling all his smashes totally rock. Also, he can combo his jab into his b-up, has awesome priority on tons of his attacks and has zero landing lag on his aerials. And he has his fireballs as a projectile. There really is no down side to Luigi.
As Samurai Panda said in his video review of Brawl, "Luigi... Oh God! ... Wow!"
The other possibility is Pika, who also meets many of the standards of the hint. His recovery is pretty good, and his moves though they didn't change in animation their properties changed very much. Many of his attacks got buffed, and i personally think his uair is easier to sppike with. Then there are his smashes which are all phenomenal. His up-smash is one of the quickest and most powerful in the game; his d-smash sucks in and has multiple hits [in my opinion it's like the new Peach D-smash from melee]; and his f-smash is freakin powerful, even though it is a bit slow coming out it has good range. Pika has many options when attacking making mindgames easy, not to mention his neutral B. Retreating thunder is a personal favorite mindgame of mine, made easy with b-sticking. Pika is overall a very solid veteran character as well, making him a a very possible choice for next week.
On a side note of G&W and Peach, G&W is much better than melee, but being the second lightest character in the game doesn't help him much, even though vert-KO's are harder to KO him with cause of the properties of his dair being a stall then fall. Overall he's good, but his light weight is a obvious disadvantage, removing him from the runnings of being next week's topic. Peach fulfills the requirements of having good mindgames, and a good recovery, but her d-smash sucks now! [and i don't mean sucks in] Her other smashes are ok, but she overall isn't that good anymore, and is definitely not next weeks topic.
Jiggly can be awesome, but being the slowest land character and the lightest in the game, are rather obvious disadvantages that disqualify her from being next week's topic, who supposedly doesn't have any disadvantages.
I can't wait to see who it is