I played 4 first and then after I beat it twice, I moved on to 3. Granted, I had 2x to 3x 980 Ti at the time I was playing them so I could max out settings. 4 was a huge leap and one of the best looking games (graphics and scenery) I've ever played. As far as the story, the FC3 kids were terrible with poor voice acting, same with the other characters like Vaas. Maybe it's because FC4 had foreign accents but I feel they had much better voice actors. FC3 felt cheesy the entire time too, especially since you're playing a character that's whiny little... That just killed it for me. IMO they should do a reboot and just redo every cut scene with different voice actors.