@nnhood
Spend enough time on SB and you will learn that jacket style BCD and split fins will result in a dive fatality (kidding).
In general, people are happy with their equipment purchases as well as the instructors they've had. Just look at recommendations for instructors/dive centers/equipment on social media. People will rave and recommend for what they are familiar. When it comes to equipment, most equipment is good enough for owners to be happy (there is some garbage out there).
Now I am a BP/W guy. I won't hide it. I also teach BP/W exclusively for open water, and not because I'm in cold water. When I open a dive center in Greece, I will still be providing BP/W to open water students as I see the advantages of fewer failure points (I have had plastic buckles break on jacket style BCDs), so I'm a fan of steel parts for adjustable harnesses (like from Subgravity). Hogarthian harnesses are not for everybody (example, people with shoulder mobility issues). Take care of your wing and it will last forever. Webbing is cheap to replace, but still last if you rinse your equipment after salt water dives and you don't leave it out in the sun.
I am also a complete wimp when it comes to temperature. I dive a 5 mil with hood in 80 degree water. With that, I dive a SS BP with STA and I need no additional weight with an AL80. If you are tougher than me, than an aluminum BP may be more appropriate or even something lighter like carbon fiber. What works for me may not work for you.
Good luck and stay wet.