i tried thatch cabanas at 2 different places (ramon's & journey's end) and was pretty disappointed. they tend to be small, sometimes buggy (they crawl up thru the pipes), and you just cant keep the sand out (even in your bed). i was awoken by the beach-cleaning staff (tho they are quiet, i am a light sleeper) at 6 am.
after 4 trips, i like the condo-tels much better. that is my voice of experience. honest, i am not high-maintenence, but i really disliked the water taxis too. being at both & the middle, i like south best. esp for the seclusion with easy access to town. i still vote for caribe island. JMHO. (c'mon, didnt you look at those gorgeous pics??!!)