Tony Vargas
Legend
4e and 3e are still list-based systems, so you still run into the issue of unintended synergies that can enable exploits and power builds. Since 4e is brand new, it should have fewer, of course. But, the new class design, in which /every/ class has a list of powers associated with it means that it's probably more susceptible to such things than PH-only 3e was, and will become more amenable to power gaming very rapidly as suplements come out. It depends on how easily powers can 'cross polinate,' though. It seems multiclassing is a bit limitted.
There's already been one exploit identified: Ranger(Fighter)
it-Fighter with Armor Splinter and Blade Cascade for potentially infinite attacks.
So if you don't like powergaming, I wouldn't get overly excited about 4e - 3e can be quite balanced with a good GM and/or sticking to core. If you /do/ want class balance that less dependent on the DM, though, 4e may deliver.
There's already been one exploit identified: Ranger(Fighter)

So if you don't like powergaming, I wouldn't get overly excited about 4e - 3e can be quite balanced with a good GM and/or sticking to core. If you /do/ want class balance that less dependent on the DM, though, 4e may deliver.