I'm not going to vote.
I would probably say 1996 but for the wrong reasons.
I was only 12 in 1987, so all up to and including that one I've only read about and not really experienced, so I can't comment on those.
1996 was probably the first Le Mans I saw for extended periods on TV.
Previously my parents never let me watch the race but for limited periods because the race was always right in the middle of exams/tests at school.
No such thing in 1996, so I was free to watch
I liked that car too, I still have a miniature of it on my book shelves