I voted Black Ops because I use a Kilo that I keep in my desk at work. I like a triple-flame in general and it has a nice larger-gauge punch on it... most lighters with built-in punches, especially cheaper ones, have a smaller gauge than what I prefer.
I also have plenty of Ronson Jet Lites floating around. I buy one or two whenever they're in stock at Wal-Mart... my favorite is the dark chrome with the art-deco pattern on the side. I stash them random places (golf bag, glove compartment, briefcase, etc) and PIF plenty of them as well.
I've been jonesing for a Xikar Element for awhile (also has a larger-gauge punch built in), but I'll never drop more than $20 for any lighter. As a substitute I'll probably pick up one of these from DX for $5ish, and also try a few of the different Blazed clones everyone else here has been pleased with...
