I don't always buy from these brands but I back them.
Black Label - they keep skateboarding about skateboarding and I love the style the team brings
SkateOne - the marketing and graphics are kind of whatever and somewhat dated, but they make stuff that works really well at multiple price points and release things that shake up the industry on occasion (ie Dragons)
Polar - the pants are really good quality and perfect for people with big thighs like me without restricting any range of motion. I just wish they were cheaper but it's pretty easy to find them on sale
For anything else I get what works (trucks, shoes, etc).