hmm all .. well maybe yuna , her anima can do up to 1.6 million damage (with ultima buster) and 3 times to beat him . just teach him haste and curaga and sure he has at least 15.000 hp
worst character hmm i know my sexiest charater is rikku ,tho lulu realy has a pretty face and uhm kamari is butt ugly.. i guess that makes him worst .. all got the same stats here :0)