Hi there. I have been to both many times, (about 15). Both are good dives but I preffer the Sheridan, also called by some people the "Sheraton". It’s a nice dive and not too far out. Inwould recommend you going with Tanks a Lot dive charters off Clearwater.
How many divers are going? I might even join you guys. I know people that just went and the viz amd conditions were super nice.
Otto.