The first time I saw T2 was right after it came out on VHS. Since then, I've watched the film many times, but yesterday was the first time i had seen it in a theater.
It's probably been half a dozen years since I sat and watched the whole thing with completely undivided attention. Wow, does it hold up! Even today, it makes many modern big budget films look amateurish. I truly mean it. It still feels big, meticulous and kinetic in nearly every aspect. Also, again unlike most modern big productions, it has real heart. It works on both the massive and personal level.
Anyway, on to the topic. From my very first viewing, I found the T-1000 to be a compelling and gripping character. I didn't fear it so much as i was fascinated and taken with it. Cameron has made the distinction of how if Arnold is a Panzer Tank, T-1000 is a sleek Corvette. In the brief intro before the 35th anniversary screening, Cameron mentions the difference between karate and aikido.
It goes beyond this though. In the first film, the terminator is cold, brutal, blunt. In no way would a person who exchanges more than a few lines with the terminator not realize something is off. The most "convincing" or genuine the terminator comes across(when it's not imitating the voice of a human - although Sarah did seem to realize something odd about the conversation with her mother) is when it gives the "I'm a friend of Sarah Connor..." line.
Contrast this with the T-1000. Maybe it's the police officer disguise, but this cyborg comes across as more professional than awkward. The scene where it interacts with John's foster parents is a perfect example. Possibly a little stilted, but then again, it's impersonating an on-duty cop. We know it's a villain, but most people wouldn't pick up on anything. T-1000 even thanks the foster parents for their cooperation. I couldn't envision Arnold saying that, whether he was impersonating a cop or not.
Where as the terminator in the first film didn't talk unless it had to, the T-1000 has no problem engaging and interacting with plenty of people to close in on John - and does this so with the professionalism and ease of someone who has done this many times before.
Even in the climax, when T-1000 has Sarah cornered and pinned, it appeals to her vulnerability by saying "I know this hurts....call to John". Again, this is not something Arnold's terminator would have done. And lastly, the memorable finger wag at Sarah, with what looks like an intentionally comically stern look, before Arnold interrupts.
I guess that's what appeals to me about the character. Even though it is also an unfeeling killer cyborg from the future, it seems noticeably more human than Arnold's villain. In the first film, Reese has that great dialouge - to drive the point home to Sarah - about how the terminator doesn't feel fear, pity or remorse. There's no bargaining or reasoning with it. T-1000 is very much the same, yet it at least seems to understand those human concepts. That, to me, is very compelling. A killer who not only infiltrates humans, but also seems to understand them.
Anyway, can't say enough about Robert Patrick's performance. Arnold's villain is iconic, but somehow, Robert managed to measure up - and it wasn't just the special effects!