Depends ... well, lots of options and there will even be MORE opinions, haha, but I do see BB going out of favor in COLD weather. Once did a shift at scoring at the last shooting station as a MZL snowshoe biathlon event up in Vermont, whilst a balmy 17-degrees-F out, and within one1-hour I witnessed 8 broken ramrods on arms like T/C Hawkens and Lyman GPRs, 7 with Bore Butter and 1 with spit lube.
Note that none the flintlock shooters broke their rods, but whereas flints are a different animal and typically require somewhat more 'care', dare I say it ... maybe they were more experienced shooters or familiar more with lubes, loading, and/or issues in cccold weather.
What I like ....
WARM weather - Hoppes' BP Patch Lube 9Works fantastic ... shoot all day without swabbing!
Hoppes is great and has been the best lube I've ever found for any caliber. And yes, you can just load-shoot, load-shoot all day long with NO bore wiping.