I have no problem with them being more action-oriented rpg's, btw. I was just postulating that these forums tend to lean more towards story/character focused rpg's. I knew one person who didn't think the M&M series was all that much more engrossing than Diablo.

I thought that view a little extreme, personally, but you were wondering why there weren't more M&M fans here, and that was my idle theory.
They were truly open world and the main questline wasn't breathing down ya neck, people could argue no real direction, but it's not about doing some amazing mission, it's about being a hero, thus you're not some chosen one or anything, I liked that.
I prefer(red) these to TES because they seemed more realistic, and you really had to manage your resources well. You didn't have coins, potions and magic items dropping left, right and centre. I personally appreciate(ed) the pseudo-medieval, (relatively) low-magic setting more than what the TESes, WoWs, DAs and KoAs have offered.
Mandate of Heaven was my favourite.
I feel magic was more advanced in MoH than in Skyrim, you have more schools of spells for instance and I agree much more realistic regarding your item usage, also how it was essential for all of ya team to have missile and melee weapon really felt more realistic too.