Brawl has a few nice things that we'll probably be seeing more of in different Wii games, but they sacrificed gameplay for it. Brawl's VS. mode is oversimplified and therefore glitches and significant gaps in character usage were created. Melee > Brawl, but most people are going to be playing Brawl so you better not slack..
Melee is much deeper. Not much to it. Just play both games for a long time and you'll figure that out for yourself.
EDIT: PCHU, no offense but you seem kinda cocky. I searched you on youtube only to find you barely win against someone using one hand in a Marth ditto. Before trying to beat Mew2King maybe you should try beating someone... around decent, first.
That wasn't me.
I was PkPCHU on youtube, the one that replied.
CRAP, I need to post my youtube name more.
And I'm sorry to have done this.
Be careful who you research on, it may not be them.
Seriously, the only youtube videos I have up are animations and a horrible piano playing (I do much better now).
But my Marth is way better than his.
I do have trouble with approaches, but once I get one hit in, it's all downhill from there.
Sorry if I sound cocky.
Not many people play in Jackson, if any.
And practically nobody knows what the crap wavedashing is, save one of my friends at school.
ONE.
From the sound of it, she's pretty good, but who am I to judge without looking.
So it stands to reason that I most likely have the best Marth in Jackson.
Also.......
Melee does hurt Brawl in competitive play.
But being competitive requires more thought in Brawl.
Doing the things you could in Melee is now difficult or impossible to do.
Wouldn't that at least make it AROUND as competitive?