But M&M looks a bit intimidating if I want to use it for fantasy. Seems to me a great deal of "system mastery" will be required. True?
I'm not really sure how it compares with other systems that way, because it's so subjective. But what Silver said in the above post is true. Personally, I found the way the corebook is set out very easy and helpful, and the writing nice and clear. YMMV, as they say.
For fantasy in particular, well, the corebook's not oriented that way. . . per se. It does include a number of fantasy elements, quite explicitly (a few fantasy beings statted up, for example), but still. On the other hand, you can do pretty much anything with the system, once you feel confident enough with it. And there's
tons of help, advice, and already figured out / statted out stuff available*, especially at the AtomicThinktank forums. Oh, and then there's W&W.
You might also want to check out Elric's post in the other M&M thread currently active here, for he is wise in M&M's ways.
* For instance,
here and
here (in the second place, it's worth looking at the D&D Conversion and Fantasy Archetypes [? - I think] sections near the bottom of the page, them being of particular relevance to your question). There are others. Sites, that is. But they should give you an idea of some interpretations of pretty 'standard D&D' fantasy seen through the M&M lens.