I can't agree with you more about the Apple/PC, FCP/PPr issue. Build your own machine, make it a beast, and use whatever damn software gets the job done. Need a laptop? Grab a gaming laptop with a built-in Nvidia 1070 or 1080 and again, use whatever software you want that meets your needs. You schlepp around pelican cases full of heavy gear, so what's another pound or two on your laptop? Oh, and you'll have enough money leftover to fly to Europe and shoot b-roll for a whole weekend.
I can't research every single audio system on the market, and I've been thrilled with my G3s, but why hasn't any company figured out that you should be able to record locally and monitor wirelessly? That way, any interference that occurs won't actually be in the recording and you'll be able to listen for anything that goes wrong. You could even record the receiver output as an "oh shit" track. This just seems so incredibly obvious to me.
The Q/W, shift+Q/W shortcuts are game changers. Head and tail trim to playhead and extend to playhead, respectively, really will make you faster, especially when stringing out your roughs.