Welcome to TFP if I haven't said so already.
Raypak consistently gets the best reviews, and recommendations from the Pool Pros around here. These seem to be number one, with Pentair at near equal or close second time and again. I'm on my third season with my RP, and like it a lot. It's actually a Rheem, but these are one in the same now for at least a few years. Good luck on your selection!