I assume you're playing on a phone screen, then?
Running the game on a 1920 x 1080 TV (Exact same as my monitor), scaled down my 360 settings to 720p. The aliasing quite literally decimates the eyes at first. I got used to it from how long i've been looking at it. But it is of actual colossal proportions.
I turned around, launched Black Flag on my PC and disabled all aliasing and it wasn't NEARLY as bad. And that game shares visual qualities with V HEAVILY. With some of the greens (Trees in LS) and heavy lighting effects.
It's absolutely disgusting. If it weren't for the aliasing, I'd be praising the sh*t out of the visuals. But there IS aliasing. Metric f*cktons of it. And I can't wait to get rid of it with the PC version.