.
You take 2 good characters and your healer. Wait until everyone has their turns up, Use 2 good character's for damage, your healer (This is assuming that is Frog/Marle because using robot for healing = no)
Heal Beam has a better multiplier and Robo has better starting magic than Frog to boot. Marle with Heal would have been something, but she doesn't have it.
If you really want to be safe you can focus on one at a time, put them to sleep, and/or have Lucca use Fire after your stronger attackers beat the crap out of them. Falcon Strike in particular makes quick work of them, and some of you might be insane enough to have Luminaire/Triple Kick by then as well.
As far as SFIV, you can't really two scoop anymore (I guess it needs to read neutral?) and some of the true combo timing is insanely precise (as opposed to linking moves), but otherwise it's quite forgiving.