I tried to stick to the biggest ones, just so the poll isn’t like a gazillion lines long.
Personally, I’d have to say Logitech. I use a Razer Naga daily, but when it comes to keyboards the Romer-G is my favorite switch. Back when I was very into CS:S I used an MX-518. I love what they’re doing with their mouse clicks (the separated clicks). Their sensors are amazing. I’ve just never really had an issue with their products, other than the G933 which randomly stopped syncing one day.