I've taken a bit of flak from some folks for claiming that OD&D is an ideal system for handling Hyborian Age gaming. It would seem that even my own Hyborian Age OD&D Hack didn't convince many folks, who think you need something more detailed, somehow, to properly represent pulpy combat. I disagree--why do you need an extensive list of combat maneuvers to spur your imagination about what's going on during a minute of battle? I think my sorcerer class, included in the linked PDF above, solves the magic problem neatly, and that the use of Chainmail-style combat is exceptionally pulpy and action-packed.
In any case, I may get to find out how right or wrong I am. I'll be running a short Hyborian Age OD&D game with my Sunday group, soon, converting Mongoose (and other) modules to OD&D. I'll keep a log of how it goes.