[Tiny Bronco]

I enjoy Cids limits greatly (I always liked the Highwind and Cid's storyline/attitude) but Aeris has by far the most usefull Limits if you use them right. Her seal evil will get you through almost everysingle boss battle in Midgar and Juno. Then Firebrand owns everythingbecause your other 2 characters get their limits. Finally,
Her move that makes your party immortal to everything for a couple of turns is great.