I think the 1983 Medley stuff is incomparable (VWFRR, Hirsch, etc). Whatever is in Michter's 10 (I suspect some of the latter) is close. I echo the mourning of the passing of the Saz 18 as a tie for second with M10. I just have to make sure I have enough to last until BT starts releasing aged rye.
For young rye, I really love the Ritt BIB (just posted about the DSP-KY-1, which I like a bit better than the 354) and Baby Saz in a tie.