Winchester's WLR (and its progenitor, the old 81/2-120) has always produced the best results in MOST of my rifles. The occasional R91/2 and F210M pops up occasionally as the ignitor of some of the "best loads" in my load notes, but, the WLR is the overall leader by a long shot (pun
).
Handguns seem to like CCI's, standard or magnum, depending on the respective caliber/load.