New Mouse recomendations

I have always used logitech and suggest sticking with them. Any of the G series are great 

If you want a mouse for aiming and for FPS,  I would recommend looking into Zowie Divina S1 or other zowie mouses, Model O, G PRO Wireless from Logitech. All of these mouses are great for shooters!

I use a G-wolves Skoll but that's because I like the light weight and ergonomic shape. Maybe you'd like something like the deathadder if you like large mice with gaming features.

I use Razer. I stay away from Logitech because their buttons suck. I get maybe 6 months out of them before I get double clicking or no clicking.

I love the logitech proteus spectrum. most comfortable mouse I've ever used for gaming. It comes with interchangeable weights so you can adjust that to your preferences.

I have a Corsair M65 pro mouse which has lasted me 2 years with minimal troubles, its relatively cheap(mine was 80$) + 12k dpi max and took some time for my small hands to get used to but if you have large hands I think it should be good

I've used a Razer Mamba Hex but sometimes the drivers lock up, just upgraded to windows 10 so maybe that will fix it. Just a heads up in case you decide to use a Razer.