If you want to play on Windows 7, 8 or 8.1, buy Koryo
If you don't want to have to pass an ID Verification under any circumstances, buy Koryo
If you want "NoSpread" or "Bunnyhop", buy Koryo
I don't know who got the better Aimbot since I've only used our own one and this comes down to personal preferences, all I can say that proofcore`s one works great and can be customized for both legit or rage playstyles.
If you want actual ESP with health bars and boxes (instead of just glow), buy proofcore
If you the cheaper price, buy proofcore ($49.99 vs ~ $60.67 per month)
If you want the more "private" product and community, buy proofcore
You can find videos for both cheats below, maybe just compare them and pick the one you like most. Or try both
Koryo:
proofcore: