Thunderation we have done twice. My daughter 4 times since we do child swap with my youngest. It is my daughter's favorite coaster.
Fire in the hole for sure needs updated tech and drop track. It was just OK to me and my daughter didn't like it at all and refuses to ride it again.
I am not even sure how powder keg could be half water coaster, but sounds interesting. My daughter was in line to go on it again tonight when lightning hit and the ride shut down. It was 9:10 and it never opened back up.
We have one more day. We are thinking skipping tomorrow to get the youngest a real nap and going Friday. Today we did the water park. It was ok. Not my favorite. Not sure I would go back unless both my kids were older. Did not like that you can't wear water shoes on the slides and none of those slides stood out to me as a must ride. We did not get to go on everything as my youngest was not tall enough. We ended up leaving around 4:30, going back to the hotel, cleaning up, and going to Silver Dollar.