Favorites are La Bella HRS-73 minus the 10 for B/drop A or for E/drop D minus the 64. I have to mail order them though, so I mostly just use those for B.
I've gone back to using D'Addario XL 10-52 for E/drop D, 11-56 for D/drop C, and 12-60 for C/drop A#. Most consistent tension between tunings, and I never have a dead string out of the box, which I can't say for any other brand except La Bella. The new packaging suuuuxxx though.
Picks are always and forever Dunlop black nylon (1mm?) max grips. Before they made the max grips I used the regular black nylons, ever since I started playing guitar (1990 or so). Jazz III just feel so weird, tortex are way too stiff, celluloids are too slick, metal is too both and sounds like fingernails on a chalkboard. The nylons just feel and sound right and I almost never lose them and they don't wear down very quickly.