As I'm sure you know, most ADJ-branded gear is utter crap, but the PocketScan is a notable exception. You've touched on most of their strengths, but easy on-site DMX programming is a plus, so is master-slave operation (for the occasions when I don't have a controller.) Also I can fit four of them in a case I can pick up with one hand. Now that I have all four working, I doubt I will lug out my big Geni Shivas or MojoScans anymore. The Shivas are much, much brighter, and have rotating gobos, but are really a two-man job to set up.
Martin is great if you have a large budget, a big crew and lots of time to set things up. All things my lighting company lacks. The MiN Spot is cute, but even at 8 lbs I have an aversion to moving heads. They're great for installations and large mobile productions, but not practical for one man operations. Certainly LED fixtures are the way of the future for lighting. I'm eyeing some of the LED color tubes, waiting for them to come down in price a bit.