where to stay in phi phi?

The laid back east coast has the best resorts, and is least crowded.

Holiday Inn...
http://www.phiphi-palmbeach.com/

Zeavola...
http://www.zeavola.com/

both at Laem Tong Bay,and

Island Village
http://www.ppisland.com/index.htm

which is a little closer to Tonsai Village.