I don't use Gunluggers for one-shots, because they make violence too easy an option. Although note that even with NTBFW (acting as a 3-harm small gang in battle) and 2-armor and choosing "take little harm" on a seize by force roll, a Gunlugger will still take 2 harm from a 3-harm 1-armor large gang. Not likely to be much fun for the now-dying other PCs, though.
Here's my thinking after running a dozen one-shots (8 Hatchet City and Blind Blue, 4 Operator and Crew): For one-shots I like to use an Operator with the other PCs being her crew, with an NPC or two as well. The players talk over what sort of moonlighting gigs the Operator should take (since that influences what characters are good, or rather, players choose characters they want to play, and Operator chooses gigs that suit those well), we work out back story and Hx and highlights and all that. For a 4-hour 4-player one-shot I don't offer all the characters. I put out Vincent's trifolds (MUCH better than the teensy playbooks) for Operator, Angel, Battlebabe, Brainer, Driver, Savvyhead, Skinner, skipping the ones with large casts of NPCs (Chopper, Hardholder, Hocus). After the characters are created, the Operator makes her starting Moonlighting roll, and things develop from there.
I used to skip Savvyhead, but after seeing one played very well at GPNW I offer them now. Possibly I'm being unfair to the Gunlugger, but I prefer running one-shots in low-firepower settings, where a gun is a serious edge, and I find conveying a sense of danger is much easier without the 'lugger.
Operator and Crew doesn't show all the deep intricacy of the long-running campaign game, but it is sharp and fun and shows the players how the rules and setting work and gives them an appetite for more.
I have a much longer and more detailed description of how I run AW one-shots that's available for the asking via email. And by no means am I claiming this is the best method. It's just a method that's worked well for me (and others) in the time constraints I'm usually under, and I continue to refine it. I'll be using it at Endgame's 10/16 minicon, and at Go Play SF Bay's "Taste of Apocalypse World" 10/21 at Endgame, and no doubt a bunch more times.