What is your favorite gamemode and why ?

What is your favorite gamemode and why ? My for example HL2RP, and you have ?

Tower defense games. Idk why yet, its just so fun to destroy advancing waves.

Mine is DarkRP, as you can be really creative while still enjoying RP.
If you want something more serious, Star Wars RP is always good.

This theme need placed in Garry`s Mod but me liked DarkRP

SeriousRP because i like playing seriously with /me

PoliceRP idk why its really fun. Its alot more serious than darkrp