I've played with pretty much any film I come across, and in terms of cost-benefit I've settled on Fomapan films. I like the grain structure, they are some of the cheapest BW film available and have great latitude if you like to mess with stand development. I shot this photo on a Pentax ME camera using Fomapan 100. Developed at home with Ilfotec DDX and scanned with a Canon 5D Mk3 + Canon 100mm f2.8.
HP5 and Delta 100 for most things, and Lucky 200 since it's the only 220 B&W left that I know of.
Never heard of Lucky 200, will search for it. Got any photos you shot on it to share?