I liked Ao Nang very much. Nice relaxed atmosphere. Hired a moped there and enjoyed the surroundings. Most of the other days I spent on boattrips
Phi Phi is about the only place in Thailand I didn't like. Thought I was visiting some Mediterranean island. Wasted by tourism if you ask me. Thai people who I met were spoiled by tourism and forgot the existance of the word service. I think nightlife sucked.

The only thing I liked of Phi Phi were the 'suay' scenic views
