based on personal experience.
best book: Pinnacle
best full juice book for US players: Greek
best recreational book for US players: 5dimes (i recommend take their reduced juice option when signing up)
best exchange: matchbook (betfair's rules are really confusing, so i don't have an account there. i think they're solid too)
credit book that i play at that i like, but still a relatively new book: blackdog
unless you're a pro, 1 book is usually enough. if you're a pro, then you already know which books are solid.
best book: Pinnacle
best full juice book for US players: Greek
best recreational book for US players: 5dimes (i recommend take their reduced juice option when signing up)
best exchange: matchbook (betfair's rules are really confusing, so i don't have an account there. i think they're solid too)
credit book that i play at that i like, but still a relatively new book: blackdog
unless you're a pro, 1 book is usually enough. if you're a pro, then you already know which books are solid.