I dont really have a favorite chip, but the one i use most often is Super Vulcan just because it can do insane damage when you have the right stuff.wait for
Double Point,SuperVulcan,Atk+30,Atk+10,Atk+10,Full Synchro.
If you dont have the double point in there it does, uhh, lemme see 120X12=....1440 i think.And with the Double Point chip, it does......XD too much math, well, you get the point. Great Combo that can murder anyone except Duo and Shademan...and anyone who dodges it.