What gaming mice do you use?

Logitech g402, cheap gaming mice

trust gxt 31 right now, but i like a4tech

My Razer DeathAdder 2013 has yet to fail me so far. Got it in an exchange and haven't had an issue since.

Red Dragon perdition gaming mouse. My mouse pad is a picture of a bmw i8

Razer Deathadder Chroma $50 more for the same mouse with leds +1 ez

Razer Mamba Tournament Edition really nice in my opinion, I had earlier Roccat but add a problem with left mouse button (microswitch)
If you are going to buy a new one you might consider optical mouses, as I saw plenty of reviews where they said are better for FPS games.

I use a Razer Naga 2014 (Left Handed Edition) atm even though the mousewheel is broken :/, mainly use it because its left handed and the buttons on the side are really useful (even if you dont play MOBA's

AntLion ModMic v4. Easy to set up and has a great quality.

I've got 2 Razer mice I use regularly. The Orochi for my laptop and the Deathadder for my desktop. The Orochi is kind of a p.o.s, though. I've had to swap cables on the little shit 3 times in the year that I've had it.

Razer Death Adder for the past decade or so.