What's your favorite Counter Strike game?

What is your favorite Counter Strike (C.S) game?

1.Counter Strike 1.0 - 1.6 (C.S-1.6)

2.Counter Strike: Condition Zero (C.S-CZ)

3.Counter Strike Source (C.S.S)

4.Counter Strike Neo (C.S.N)

5.Counter Strike Global Offensive (C.S.GO)

6.Counter Strike Nexon: Zombies (C.S.NZ)

7.Counter Strike 2 (C.S 2)

8.Other

Write down in the comments!