Well I voted for Razer but most of my "accessories" are from Logitech.
My Mouse: Logitech G700 (my G9 had a problem with the cord)
My MousePad :Rocat TAITO
My Keyboard : Logitech G19
My Headset :Logitech G30
For this spring my targets :
Mouse : Razer Naga MOBA
Mousepad : Razer Ironclad
Keyboard : Razer BlackWidow Ultimate Stealth Edition
Headset : Razer Tiamat 7.1