I'm not expert but I've learned from experience is that you really don't want your kick and subbass to clash. I advise at some point just soloing those two channels, and seeing if your kick is in key with your song, then adjusting the pitch if necessary.
Also, even though we all love love love a big bassy punchy kick, you only want one instrument or sample to be holding the job of providing the lows in the track, and if you do have both, make sure they actually sound good togethor. This is just my two cents, and I'm by no means a professional, this is what I've picked
Up on the topic of EQ'ing kicks

Quote from: bolier on January 06, 2016, 04:39:05 pm

i also sometimes try to boost the frequencies enhancing the key the kick is playing in, kinda like a comb filter inversed

I do that a little only  if the track really needs it. Pretty easy to over-do that it sometimes though. Just be careful when boosting.

hence the 'sometimes' in my reply

Before even considering Equing a kick make sure your room sounds good (or actually doesnt "sound" at all). Especially Kicks (Bass / Subbass area) can be tricky and kinda falsified when played back in a non-acoustically-treated environment. I've spent ten thousands of $ of gears over the years before even starting to treat my room properly, if you invest a little bit in your room (acoustic panels) it will save you a lot of trouble.

Mostly I eq my kicks like that :