I'd probably say...2. I liked the city in 1 more but 2 improves on a lot of things in the first game.
Second Son is still a great game, but Delsin isn't nearly as good of a character as Cole was, and the game felt a bit hollow compared to the previous 2.
Oh, and I thought Fetch was a way better character than Delsin. A whole game about her would have been better in my opinion.
Bet with Adamblaziken:
I bet that on launch the Nintendo Switch will have no built in in-game voice chat. He bets that it will. The winner gets six months of avatar control over the other user.