I've had both and it really comes down to what you like to look at more, be it corals or fish. When people come over and see the tank I always get more reaction from them on the fish, seldom do they dwell or drool over a coral. It is personal preference. Personally, I prefer a FOWLR. I enjoy watching the fish move around the tank. Sure, there are fish in a reef tank but I like bigger, more agressive fish. Things like triggers, lions, puffers, wrasses etc. Again, it comes down to what you want to look at. The maintenance is higher on a reef tank IMHO. The water has to be more pristine. A coral can die and wither away while one right next to is thrives. Good luck.