There are two views on balance depending on how you play. Competative players look at the tier list. Casual players (basically anyone who doesn't follow 1v1, no items, Fox only, FD) view the game a lot differently.
Generally, we see the game as being balanced overall where most characters can compete. These people felt Melee was either broken or balanced, but everyone agrees that Brawl is more balanced over Melee, There is some disagreement on if some characters are better then one another. Typically, the characters who stand out are......
- Ike-****** strength. He's so powerful that he can KO most characters without even trying.
- Lucas-Strong smash moves and specials. Like, ridiculously strong (Up Smash anyone)
- Snake-Just really powerful overall. Him being powerful isn't the problem, it's that he disproportionately powerful in terms of his speed and size.
- Pikachu-Lots of cheap moves. Down Smash and Thunder are hard to get though.
Other characters have annoying aspects too, but these are the biggest ones. Snake isn't as bad as the other three, but he is an honorable mention. As far as Meta-Knight goes, he's only bad in his Tornado and down smash. Otherwise, most people don't see him as a threat.
That is crazy that he thinks Link is amazing. I think he's weaker (namely as his forward smash and Up special are not as good), but defiantly still viable. I can see how players perceive things differently.
Your problem is you've been brainwashed. You only see with a competitive eye.
Items help everyone as they add an advantage aspect. They give characters advantages over the others in some way. This allows any character to compete. Even if you use a really bad character (like Pichu), then the items will still make you better then everyone else. Most competitive players believe items make the game too random, but most items have a way around them and a way to use them. One of the biggest flaws in the EVO Finals 08 was that both players threw their battering items. While this is OK for the bat, you are either giving up your item or worse giving it to the other player for him/her to use on you. For all battering items, you should use them as battering items. They get a lot of use out of them that way.
Also, Smash does well because it is a dynamic multiplayer game. People expect fun and crazy stages/items. They are a very important part of the game. I'll tell you (to all tournament players reading) that tournament play is SOOOOO boring. If your going to play like that, I'm going to watch another game.
{quote]Anyway, how is Link broken in Melee, and the same goes for Ike and Lucas in Brawl.