Go Logitech. I have both of the mentioned ones, 518 & G5. Currently using the G5. Both good mouses. try one in a shop, see which one fits your hand better. The G5 has the weights in it and they make a difference for me. The Habu is made by Razer for MS, so if you dont like the Razer brand forget the Habu. (havent tried it personally so I dont know what its like.)