Why 4 is better than 5 And why 5 is better than 4
This is my opinion/analysis, please don't get mad.
Why 4 is better
Driving (feels realistic)
World (LC feels more alive than 5)
Ragdoll physics (V feels meh)
NPC'S (They feel more alive and they can get arrested)
Story (The story is peak)
Niko (better than the 3, but Michael is still well written)
Dimitri (feels more threatening than Steve/Devin)
Map (it isn't 70% dead space)
Climbing (you can move along ledges)
Exiting vehicles (you can leave the car running)
Friends (there are certain times where their avaliable)
Shooting (guns sound powerful)
Why V is better
Heists (their more fleshed out and varied)
Driving (depends on your preference really)
Weapons (more variety/selection)
Weapon wheel/radio wheel (makes it easier)
Mission replay (more better than restarting)
Money (buy businesses, garages)
Customization (haircuts, tattoos, clothing)
Vehicles (expanded in customization and variety)
Map (bigger but there's dead space)
Planes (They returned)
Wildlife (more animals)
Gameplay speed (feels more faster)
If there's anything I missed, write it down in the comments.