I'm interested in your tests, but when it comes down to it for me, I'm going with ARB because of the name. Not just the name, but what that means. ARB's customer service is nothing short of top notch. A friend of mine was being a bonehead and engaged his front locker while the wheels were spinning at 10 mph and fried a couple pieces in there. When the shop that installed it called ARB they said they didnt have the parts in stock, but were going to call him back when they figured something out. They ended up tearing a shelf unit apart and overnighting the parts at no cost to anyone but themselves. Its stories like that that make me a pretty devoted customer to a brand like that.
I am coppying both our posts to the LINK I posted above. Lets chat there in the Fridge BS thread.