One thing I always wished GTA PC games would allow, is custom setting of the 'circle of influence'.
You know how you spin around, and cars in the distance disappear if you look the other way then back? The circle of influence is far too small, to accommodate consoles; would love if I could set it to whatever I want no matter the performance hit.
But, I got GTA 5 on the 360 when it first came out, and imo it's the weakest GTA ever. Trevor is kind of an interesting character, if you can stomach him, but multiplayer sucked bad ($6k-$12k payouts for doing a mission with million dollar cars; losing money when dieing in deathmatch, and bland racing imo). Rockstar wanted to nickel and dime us to death with this one, with you being able to 'buy' in-game money with real money, hence the low mission payouts - not supporting that.