What missions in any GTA game do you consider to be the worst, for me, it is as follows, I have to leave GTA III and GTA Vice City (although there is one mission I remember for that) out as I haven't played any actual missions (although i've free roamed in those games not to long before GTA V was released) in that game for ages, so I can't remember much.
GTA Vice City:
- Demolition Man: blowing up buildings is fun and all but when controlling the RC Helicopter with a keyboard, it can get kind of frustrating.
GTA San Andreas:
- Supply Lines: just plain frustrating.
- First Date: an entire mission dedicated to daring and bowling, how fun.