WoZ: Alot of aerials have less lag and the ones that don't have enough shield pushback to be safe on block with proper spacing.
Some aerials are very punishable,but some need to be otherwise aerials would just be spammed to hell.
After looking at more and more vids I honestly think Brawl will be more ground based.
Also since when does more speed mean a game is better? Honestly Brawl has less depth this is true. And it doesn't compare to melee, but as a stand alone game it's ok. Not amazing. But, it's alright.
The brawl metagame will emphasize the ground game and not aerials. People will pick up on this in a matter of weeks and then matches will look better.
Also I copied and pasted this post I made on SRK.
WW - Dedede (Lee) vs Peach (Ryan)
http://www.youtube.com/watch?v=sbxTYS8tSq8
WW - Falcon (Lee) vs Ike (Ryan)
http://www.youtube.com/watch?v=LTRvSsYtEDw
The second vid shows an inkling of what I was talking about before. How brawl's metagame will be more ground based IMO. Take a look at Ike and the moves he is abusing. Namely his standard combo. I think there will be more mix-ups revolving around that. It's already been discovered that characters have IASA frames on thier jabs, so if you jabbed a shield it would create a huge mix-up situation. You could keep going with the natural combo, grab, roll away, pivot grab, dash away, jump back a little into an aerial. And your opponent has some options too. Attempt a shield grab, roll, drop the shield and do something, spot dodge, smash out of shield, or jump cancel the shield into an aerial or airdodge. There may be more options of course. Anyway the key will be to pick an option that will cover most of the options your opponent can choose, is most likely to choose, or the safest option.
Characters that have A combos will probably better then those that have single hit A moves. Also characters that have super armor frames on them will have a nice advantage too. *Stares at Ike.*
Also those who are lucky enough to have infinite A combos like Falco or Marth can rack up damage and then when an opponent is close to DIing away, they can just stop the combo. Most people will shield after that so then it's a free grab, or throw out a move that is safe on block like Falco's f-smash.