Here's the MobelTech review and I've very pleased with what she had to say. I want to clear one thing up, I'm not still waffling, I've largely decided to get the Razer. The fact that its been out of stock has stopped me from pushing the order button.
One positive thing is it looks like you can change the refresh frequency from 144 down to 60 if that's your preference and that will be mine when not gaming. Lisa, seems to have a unit that was running hotter then others that I saw. When she was trying games it was near 90, but the other reviews had theirs pegged at 70. She also mentioned that running other apps, even pro apps, heat will not be a problem and that will be I think my primary purpose.
I just have a feeling that you are gambling a bit too much here.
First, you are taking a gamble on the OS. Second, on the hardware and lastly on the customer support.
At least with Lenovo and Dell, you are only gambling on the first two cause it is possible that you will get good support from Lenovo and Dell. I have always got better support from these two than from Apple.
If I were you and if I ever decide that I can do without OSX, it will be a Thinkpad for me. I already have a T470 and I am very pleased with its build quality. It is more practical than any machine I have used. Not my primary machine though cause it does not have OSX.
If not the Thinkpad, then
maybe a Dell Precision? This is a big maybe cause I fear it will be susceptible to the thermal management issues.
The safest route in my opinion is not buy physics defying thin-and-light machines and hope for longevity. The safest route is to do what
@Queen6 did: buy a honking gaming laptop that respects the power inside it by providing plenty of cooling and ventilation.
Another alternative is forget buying a powerful laptop. Rather buy the cheapest Apple laptop you can buy and build a golden master DIY Hackintosh. You have power and mobility, just not in the same package but you get everything else OSX has to offer.