I'm a fan of CPM MagnaCut. My EDC fixed blade is an MKC Speedgoat in MagnaCut, though I wish it weren't such a high-polish finish. Actually, all of my MKCs are MagnaCut, and the blade on my Leatherman Arc is MagnaCut, too.
I also like the steel on my ZT 0450CF; I'm pretty sure it's DLC-coated S35VN, but it's on the dresser on the other side of the room right now, and confirming that just sounds like too much effort at this hour.