1. bonuses
2. how horny sounding the clerks are when I call
3. the look of the website
4. # of emails... the more the better.
5. the ability of the book to sell my info to everyone
6. hackability... if a book is spending money on technology how can they pay me?
7. drug use... if the owners are high I can beat their lines (think about it)
8. if they advertise on all of the posting forums (that way I know they have a lot of bonus whores and sharp players)
9. rumors... rumors about slow pay are good for a book (free publicity)
10. the willingness of a book to let people have multible accounts.