With that argument there are a bunch of equipment the OP could buy that is cheaper! I like Zeagle regs over Hog. When diving warm water I like a back inflate BC over a BP/W especially if I have to wear a weight belt belt. It's nice to have pockets as well.
The BP/W works well, but it's hardly the end all in BC's unless that is what you like. There is the rub. Not everyone likes a hog harness and BP/W. Heck Netdoc is now diving some funky BC with an electronic purge and 50+ lbs of lift. Different strokes......
I did not say cheaper, I said a better value ... not at all the same thing.
When diving warm water I prefer one of my FENZYs to either and I if I need lead I put it on a belt, much easier to adjust trim by sliding the belt a bit fore or aft.
I own all of the configurations, in fact I have several of each type, including a Black Diamond ... so I speak from intimate experience, if I had to cut back to just one modern BC is would be a BP/w, with a left shoulder twist lock release.
You really didn't have to embarrass Pete that way in public.
There is no end all in diving. If there was... then everyone would dive the same thing.
You ask a diver which reg is best, and everyone thinks the one they have is the best. Me personally. After trying many different regs, I'll say this... you get what you pay for. High performance equipment is just that. No made in China regulator with a label on it that says brand X will outperform an Apeks, ScubaPro, Aqua Lung, or Atomic.
And just were do you think Apeks, ScubaPro, and Aqua Lung are made? If memory serves, Apeks are made in England, ScubaPro in Italy and A.L. in France. As far as I know the only made in the USA regsa are Atomic and Oceanic (who did not make your list). There are slew of "made in China regulators, with a label on it that says brand X" that perform every bit as well as similar design Apeks, ScubaPro, or Aqua Lung, though perhaps they lack the overpriced cult following created by their marketeers. As with the BCs, I own perhaps two dozen regulators including ScubaPros, Atomics, Aqua Lungs, Oceanics, Zeagles, Poseidons, Sherwoods, etc. (no Apeks) so I have no problem with your concept of thinking the one I have is the best since I have most of them. Frankly at $375 I think the OP got a great buy on the Atomic, I've never seen one under $500 ... but a flow through piston will never be my first choice.