Seems to me throughout the years the most popular have been:
Black jumbo silver HW
red jumbo silver or gold HW
beige jumbo gold HW in caviar
black medium large flap in lambskin or caviar
grey 05 reissue 226/227 size (or any other color reissue)
^ I think you hit it right on the mark. Those 5 are definitely must-haves.
OP Congrats on your new bag! I don't think it'll be your last. Enjoy!