I can only buy one as I will be purchasing Dark Souls 3 soon. I've taken a look at both games and I really can't decide which on to pick up. Both of them seem to be really long open world RPGs. I've played the other games in the series (W1, DAO) but I really cannot decide on which one to get. I tried W2 but for some reason I just cannot get into the game. I can't even get past the first foresty area. It seems... too tedious? Too much work? I guess it just doesn't pull me in.

I'm looking for something closer to a TES experience if that would help.

I will be playing on a PS4 slim, and I've seen some Witcher 3 videos on it. It seems to lag a lot. DAI on the other hand seems smoother.