Link sucks basically is what I'm saying. His moveset doesn't "flow" together for various reasons, including his slow movement speed, how easy he is to juggle, his craptastic recovery, his lackluster power, his lacking speed, his grab is all but worthless and just his moves not meshing anywhere near as well as the majority of the Smash cast.
Pretty much Link has the worst of all worlds. His grab game sucks, his aerials are generally not that good, he doesn't have that much power, he doesn't have that many fast attacks, he moves around too slow, he is easy to juggle, his recovery is awful (especially with Brawl's tether recovery system, which should never return), and he just sucks because of all that (I still think he is overrated in Melee), especially in Brawl.
Oh, and can we like make Link lose a bit of weight and gain a ton of speed, especially with his moves=??? That'd be nice.
I really see no reason in Link being a heavyweight. He's like a 5'6, 160 pound young adult with no great upper body muscle mass. I know Smash Bros. isn't realistic or anything, but like all the other heavyweights are generally like 200 pounds, or like Samus/Zero Suit Samus and Snake are tall (over 6 feet tall) and very muscular (unlike Link), or in the case of King Dedede, are scaled up in size to look that way.