Who do you prefer to use in chaos?
Personally, i still like using Normal Iori.Despite being slower, he has more useful moves and a better stamina.When i used Orochi Iori, my health gets depleted fast when someone catches me with a damaging combo or a super.Orochi Iori still has his strengths though but normal Iori is still my choice.
Another thing i like about standard Iori is his auto-guard qcf,qcf+K DM and his saika follow-up.He also seems to have more options to combo when in the max mode IMO.
The thing i like about orochi iori is his ability to combo from a F+A and his cool looking exceed which resembles him strangling Orochi in the KOF 97 special ending when you use Iori, kyo and chizuru.