I love all Imperials stylistically, so it's very hard for me to pick a particular year but I will throw out some years I really super like?
33, 49, 51, 54, 55, 59, 60, 65, 68, 69, 73, 74, 75, 81, 90
So it's really down to colours and options:
My preferences:
I like Black, Blue, Brown, Green...