What is the most worst gamemode

With me, I don't exactly like multiplayer, but there's quite a bit of good and bad to each one.

Sandbox for me is my favourite. The general freedom to do whatever and just have fun without any rules (most of the time) just feels great to me.
The deviancy in TTT always felt cool to me. Trying to lie your way out of something with the persistent tension of "am I going to get caught?", or "who is it?!".
DarkRP feels realistic and immersive... at times. DarkRP for me has gone downhill quite a bit. DarkRP used to be an unrealistic game mode for fun, not an authorization level of rules for a roleplay server.
(X)RP. These ones are nasty. Super restrictive. There's a few that are fun to go around and do this and that, but one small rule break could get you banned. At least that's my experience.
Ground Control is cool. Pretty neat I guess. No one plays it anymore though so, guess I'm not gonna play it.

In short, the worst for me is any of the RP's.

Kids, authoritarian level of rules, it's all quite unfun to me.