I do not think we need to turn this into a complaint thread about the final line up. The truth is, the lineup of characters is incredible (with the except of a lack of female characters.)
However, I wish that Nintendo had not revealed that Snake and Sonic were going to be in the game at all...it would have been a better surprise, and would not have lead to huge speculation for possible secret characters.
I would have loved for most of the entire Melee lineup to unlocked with only 2 of the new Brawl Nintendo characters unlocked. And had more surprises to discover.
Pokemon Trainer,
Olimar,
Ike,
Diddy Kong,
Lucas
These should have all been Locked away to provide more surprises:
Luigi,
Captain Falcon,
Nes,
Falco
Should have been unlocked from the beginning.
This would have provided much more excitement and would have definitely help prevent the disappointed nature of the final lineup.
As for 3rd party characters in the game. I woud have done 5 3rd party characters, and I would have them all hidden away through event battles or time released.
Mega Man,
Bomber Man,
Snake,
Sonic --- Possibly Include Tails as a Clone with Gliding potential.
Simon Belmont
Then it would have been fun to have an Event Battle Called Brawl Crashers were you fought all 3rd party characters.