AIMEX is the best i found so far. For me it was very important to have a very secure cheats and since most providers mass sale into the hundreds/thousands i stayed at AIMEX. The cheat itself is a 8/10.
The ESP is clean, easy to spot and got a lot of options (visibility check etc.). Only thing thats missing is a Item ESP, but in a game like COD it is not this important.
The Aimbot is flawless, hits well and is highly customizable. Personally i find it very strong (there are two aimbot methods, angle & mouse aimbot) and i usually play with angle for rage. Downside is that the prediction for sniper rifles is not well so you will miss some shots.
Miscs, well NoRecoil and Radar are the things to go with. Both work as intended. There is also Anti-Screenshot which is a nice thing to have i assume.
Support is just awesome, the staff is very active.
HWID resets take sometimes a bit longer (some hours).