I've always chosen SP because of not only the quality of the products, but the customer service too. I have never had an issue with any of my SP regs, and I'm on generation #3. I've also owned their BCD's, computers and other equipment and they have warranted items immediately when any issues arose.
I had a BCD leak at a seam and been handed a brand new one at the shop when I brought it in - no waiting for it to be sent into SP. I had a fin snap in half, and walked out with a new pair. Most recently my Air X nitrox was out of warranty by a decade and when the battery went dead, SP said it was not serviceable. They gave me 40% off a SOL. They are continuing my warranty on my regs even though they were not serviced for years because I was out of diving.
That's a pretty good record in my book and if I ever do need or want new regs, it will be SP.