I saw 2 before one. When I went back to one, it just seemed like a low budget horror movie in comparison to the awesomeness that was T2.
Granted, I was young and havent seen t1 in some time. I do remember when he put his eye on the planter, that scene was awesome.
I didn't see the original entire 1st movie until T2 was coming out. It came off like a cheese horror flick but with a cool killer robot. That is exactly how I felt after watching it. Maybe at the time it came out it was more impressive. However, after seeing T2, I really didn't care about the first movie anymore except from a continuity perspective.
I would be more in favor of a hybrid reboot a la Star Trek with a changed timeline versus complete remake of a movie that really wasn't as good as people think it was. Had a wicked awesome concept and some memorable scenes but was not a great movie IMO.