Power Pack [1984 series]
43 issues [1984 - 1989]
1 - 40, 47 - 48, 50
POWER PACK was a Fairly long-running child super-hero book from Marvel, created by Louise Simonson and June Brigman, featuring the four young Power siblings who gain super-powers (and a ship) from an alien horse and use them in a variety of adventures, including many battles against the lizard-like alien Snarks. It lasted to #62, and has been revived a few times since.
I didn't start reading the book until around the time that it was cancelled, when I heard some good things about the early run from some people (and heard the actual issues being released then weren't so good). Back issues were pretty cheap, so I picked up the first half-dozen, liked them, and kept going forward. Got as far as #40, at that point it wasnt quite as good, and I couldn't find some of the following issues as easily or cheaply, and Brigman wasn't drawing any more and Simonson was only occasionally writing, so I didn't make too much of an effort to pick them up. I suppose at some point I'll pick up the seven issues I need to have it complete up to #50 and maybe a few after (looking at the credits on the GCD it looks like I can go up to #55 safely). While the issues in that run aren't as good as the early stuff, they seem pretty good on an objective measure.
Recommended issues, anything from the first dozen issues. A great origin story to open, some Spider-Man, Dragon-Man, great art by Brigman with a few solid fill-ins by Brent Anderson. Doubt we'll ever see it, but that would make a nice solid 300-page collection or two digest sized volumes.