What do you like the most about Counter-Strike (CS) 1.6/Counter-Strike: Source?

1.6 the besttttt

because its old school, because all my childhood were spent in cs 1.6 hehe

Counter-Strike: Source... Because of low recoil and easy control of OP deagle. Easy to learn how to shoot in CS:S.

rolling retards in smac/zblock servers

CS 1.6 ...........

CS 1.6 of course... cuz it has no VAC support