Why I Prefer Terminator 1
I may be biased because I watched T1 as a child and the second one only much much later, but I always loved how the first one has much more of a horror vibe than the second one. I love the atmosphere. I love love Arnold as a bad guy. Love the slow building score.
I know the action scenes in the second one are a lot better and T2 is a more fun movie than the first with perfect pacing. But there is something so transportative about T1. Also I should say I don't like the kid John Connor in 2 that much. I find him a tiny bit annoying.