A lot of them are made by one company and then painted differently...Lister? I can't remember who build them. Also...might be worth looking at Stanley Vidmar. We are buying some of them at work for small parts storage and they're pretty impressive for the investment.
I've got an older masterhand. Sold at TSC, bought it in '99 I think, 40" top and bottom in green, used daily at the job, all day long in a dusty nasty environment, and it's been a trooper. Nary a single problem until today when I noticed that the 2 gas struts, one leaks and the other just won't hold the lid up now. Almost 20 years old though, so I can't complain.
Husky ain't bad for the money. The 52", I like and DISlike how the top is set up, where there is no "lip" at the front edge. It makes it so you can find your stuff easier but stuff also falls out easier. Being 52" you'd think it would have more space than it really does, coworker filled his up quicker than I expected. Much quicker. I like the Kobalt stainless but really don't have a use for the speakers, the fridge, and electrical. The only benefit to the 110v outlets is a cellphone charger and maybe a cordless drill charger-that's about it. Even then you have to find a place to plug the toolbox into. As said, a strip of double sided tape and a surge protector will do the same job. And I use a pair of small computer speakers with double sided tape on each side of my master hand box, plugs right into the phone & plays music if I want it. Cheap and easy. So that stuff can be added. The fridge? Waste of space. It IS a toolbox after all.
Snap on, mac, cornwell can keep theirs. I'd like to have a custom Matco box but I'm not spending the money on one. I'd take one if it was given to me though (tax free of course) but that's the only way.
I'll replace my Masterhand at some point and probably go with a US general 72", which is what I have at home, and I like it.