GoldenEye for me. FF7 would be second, and FF Tactics third.
For pretty much an entire year GoldenEye just took over the gaming world, everyone was obsessed with it. We were all playing it nonstop. Never experienced anything like it since.
I've never played SotN so I can't speak to that one but otherwise the rest of the games don't come close to those three, though they are all great.
GoldenEye and FF7 were two of the four absolute must play games of that generation (along with mario 64 and Zelda OoT).