I went on a dive trip to St. Lucia in January, 2012 and stayed at the Anse Chastanet Resort. One of the women on the trip had been diving there in 2010 and was there when Hurricane Tomas devastated the island. Two years later, quite a few of the shallower reefs were still covered in sand. The woman said that the difference in the number of fish and overall health of the reef was shocking as compared to the time prior to the hurricane.
With that said, I had nothing to compare it too and I enjoyed myself. We saw lots of turtles, eels, and all of the usual suspects - including a couple of sea horses! Is it the BEST diving I've done? No, but it was pretty good and since we've been there, the corals and fish life have had more time to recover.
We did the Superman's flight dive as well and it was fun! Enjoy!