like the others have said I usually cut my kicks around 60-100hz applying a small boost where the hit peaks (usually around the 90-110hz mark). I cut snares around 120-180hz depending on the sound, boosting around 200hz. However i take notch cuts and boosts all over the place elswhere on the snare as i usually go nuts with layering when it comes to snares. I usually play with filter rolloff till i find a sound I like. For breaks/percussion I use a steep low cut around the 400-5/6k mark (depends on the sample!) and high cut everything that arent rides or wishy washy type percussion at 14k to get rid of any high end harshness and apply cuts on any particularly horrible frequencies I find. I'll usually layer up loads of breaks, shakers, tambourines etc (I make liquid too) but have been trying a "less is more" approach to percussion recently...
processing wise i'll usually send snares to one bus, kicks to another and percussion to another. on kicks and snares i usually just use a little bit of psp vintage warmer for some very light soft knee compression to give them a little more punch and to glue the hits together. sometimes i'll put a little bit of reverb on the snare (very short decay, very dry) and/or some overdrive, always eq after every plugin to cut out and extra rumble and crap they always create. With percussion i'll usually apply a subtle delay/reverb and maybe use izotope alloy's exciter to get the beat rolling a little more, I often also sidechain the percussion bus to the kick and snare using 2 compressors to help the kick and snare poke out the mix more.
Finally i route those busses to a master drums bus where i'll then use alloys multiband transient shaper to really give the drums some poke, maybe some more excitation on the midrange... then vintage warmer again to glue everything together and bring out some detail in the sound as a whole, thennn a little eq maybe to brighten up the top end of the drums if required. If i dont use a compressor at this stage i may use a limiter with a very low threshold, so that the limiter is cutting off very little if anything from the overall sound, just for a little loudness really.
I said usually alot but fuck it, hope that helps