I was looking into adding more ribbons to my mic locker about six months ago and I spent a lot of time reading here (on all the GS forums) about what people liked and didn't. At the time it seemed like I found several posts saying the M 160s were good for drum overs, and more importantly I'm not sure I found a single negative post about the mics in general. I'm sure there are some out there that I missed, but it seemed like the Beyers have a much higher satisfaction percentage than a lot of stuff.
Josephson C 42s were my main over head pair for drums before the beyers. Don't get me wrong, I like the C 42s as mid-range SDCs go, but I think they are overly bright around 4-6kHz IMHO and God help you if you have a drummer that is heavy on the cymbals

. I had this college band come in once and the drummer had this little 6 inch "color" cymbal that he loved to hit at what he thought were artistic moments in each tune (about every other bar). The Josephson's grabbed that sound like a dog with a bone--sometimes, late at night I still hear it....

.
The Beyers are much smoother, take EQ much better, and are more forgiving of a bad room I think. I got a great deal from Sweetwater--two for about 1100.00--and that's the anniversary edition with the wood boxes and shock mounts.
The more ribbons I get, the less often my SDCs ever see the light of day.