Watch_Dogs 2 looks much better, try it! I also installed GTA V recently as my cousin pressured me to it, ended up in "FAST" team in stunt races; overall it's too repetitive, only stunt races seem to be fun and all the stuff I had to do to earn money (Doomsday Heist loops, Super car warehouse sales etc.) is just to buy best cars for those races. Comparing to Watch_Dogs 2 it was a significant downgrade in almost everything, unless you treat GTA V as a "psychopath simulator", then it has no competition.
I still find Red Dead Redemption to do a better job at being immersive.
It's obviously much less pretty than WD2 and GTA5 (heard there was a fancy re-release though?), but it feels much more alive. And I suppose the 'wild west' environment being less demanding than a modern city helps too.
