Being a bit of a contrarian, I'm starting to think about what's become the red-headed stepchild of D&D in recent years (at least, as far as I'm concerned): 3rd edition. It's been left behind by the OSR, by Wizards of the Coast, and by most of the remaining fanbase (who all now seem to play Pathfinder), and it now feels like a somewhat forlorn and desperate figure at the fringes of the D&D pantheon. We won't talk about 2nd edition, which is even worse off, but at least that has the saving grace of partially coming under the OSR umbrella - if only due to compatibility issues.
I didn't like 3rd edition when I came across it, which was years after it came out (there was probably a 10 year period in my life where I didn't play RPGs at all), and d20 always struck me as a bland and quite irksome way of running a game. D&D never had a really sensible or coherent set of rules, let alone an elegant one, and shorn of D&D there was just no point in using the system whatsoever when so many others were available. I played in a d20 Modern campaign fairly recently and loathed that particualr iteration in particular.("You get hit by a 7.62mm round. Lose 12 hit points!")
But I have a vague hankering to run a more Sword & Sorcery, Shadows of the Colossus-tinged affair, in which the PCs go around taking on mighty mythical beings, horrible ancient demons, and gargantuan Things That Should Not Be (something I've written on in the past) in a Fantastical Post-Apocalyptic World Populated With All Sorts of MenacesTM, and I've got something of an idea that Iron Heroes is the way to go with that.
The more I read about Iron Heroes, indeed, the more I start to like the thought. Listen, I love tactical combat in a wargame setting, so why not in an RPG? I like the notion of taking magic out of the hands of the players. Something about starting off the PCs as relative "bad-asses" also appeals to me, since almost all my games start off with the opposite approach. And above all, there's something almost perverse about playing Iron Heroes in this day and age, given that it's sort-of proto-4e-while-retaining-elements-of-the-worst-edition-ever, which is what I really like about the idea.