With metal I always do a decent rolloff on the overheads/room. Usually around ~500Hz, maybe higher. Boost some tasty areas after sweeping around and getting a feel for the tracked source.
For toms just use a narrowish Q and sweep it around until your ears become happy, sometimes the boxy low-mid frequencies need pretty aggressive EQ.
Snare I usually do a 24db/oct harsh rolloff around 75-100Hz. Boost some high-mids or highs for air sometimes, totally dependent on the source sound.
The kick is a damn free for all as far as I'm concerned, I usually have the natural kick handling the area between 30-300hz and the sampled one on a separate track for 400hz+ (kind of like splitting the bass in two). I find this is much more versatile when balancing thump and attack as you can use different compression, RBass on the low track, different EQs, etc. Pretty easy to coax a great sound out of kicks IMO, they handle EQ wonderfully.
Freq analyzers can help a lot with identifying problem frequencies if your listening environment is not perfect, but always use your ears in the end.
EDIT: Didn't see you were referring to room mics specifically haha, sorry!
Room mics - when i actually use one in metal - are ran through "all buttons in" mode on the BF1176, EQ'd similar to overheads, and run to a drum reverb BUS if i want them to be more spacey!