I am only using N320 for now. I don't shoot as much as before so I am not picky about the price. What I like about it is consistency. It meters really well, +/- 10fps.
Should I be shooting over 1k a month, I'd go with W231 (same charge, finer powder), or BA 9.5.
4.7gr N320, 200gr Zero, 1.175", 5" kkm, 174PF.