I have stayed in all three.I stayed at the Agate in March and enjoyed it but it is not gay.Nice staff,breakfast is good if you get there early as it is a buffet.Also it is by far the most expensive of the three.Poseidon is very good..Staff very friendly and great restaurant.The Venue is a nice place to stay but if you are going to bed early it might be a bit noisy with the shows running late.Pool is very very small,plunge pool.I suppose you get what you pay for.Enjoy regardless.