I like the cartoony Titans look. Miss Martian is adorable! Not sold on Wonder Girl's new costume; skirt over half a pair of pants is just weird. It looks like they're trying for a "street" look but had no idea how to do it.
Gaiman + Allred = HOLY CRAP AWESOME. A major step up for Metamorpho, after that lackluster Jurgens mini.
Kubert = Sgt. Rock. Perfect.
Uhh...Hawkman, ripping off an airplane's door in mid-flight is probably not a good idea, unless you're looking to kill everyone on board. Art looks kind of muddy, and the layouts are a bit too busy. Also, that kid's cartoony head is really out of place.
Hard to tell about the Wonder Woman stuff. The sketches are hard to follow, but they are just sketches, and the designs look nice.