In general, I'm not a fan of "gaming comics." With the exception of Wormy, which, in my opinion, isn't really a gaming comic anyway, I find most of them decidedly un-funny, primarily, I think, because their creators don't really get the fine distinctions between humor, satire, and irony that are necessary to make comics of this sort work.
Mark Harrison's The Travellers, which appeared in the pages of White Dwarf between 1983 and 1986, is a rare example to the contrary. Based, as its name would suggest, on GDW's classic SF RPG, Traveller, The Travellers tells the story of the five-man crew of the trading vessel Osprey, as they go from world to world in search of easy credits. What I really like about the comic, though, is the way that Harrison manages to capture the feel of what it was like to play Traveller in the early 80s without being self-conscious about it. The Osprey's adventures are comedies of errors, fueled by equal parts greed and violence, and filled with characters, places, and situations ripped bleeding from every SF novel, TV show, and movie within easy reach. That's how I remember actually playing the game, even if my aspirations were often much higher.
I'd never make the claim that The Travellers is high art, but it's a gaming comic, so I take that as given. It is, however, a fascinating window on the past, one that reveals a lot about the culture surrounding one of my favorite RPGs. And, besides, "Gavin's Swan Song" is a joy to behold.