If you're looking according to the client versions, I support 0.3z as it got many security updates and also the synchronization has been improved. Also, it supports lagshot if it is set to triggered as like that, so I really like 3z much more than 3x. It also provides the way in creating efficient anti-cheats, also supports in creation of new cheats which is a negative effect.
According to YG versions, I support 3x as 3z of YG currently uses the fixed sync. I'm a lead-aim shooter and I love it. It's always challenging.