Kick, Snare, Hihat! (I believe this is industry standard)
my preference-
Kick In, Kick Out, Snare Top, Snare Wire, Hats, Hi Rack Tom, Mid Rack Tom (if there), Floor Tom, Stage Right OH, Stage Left OH.
OH1 and OH2 - that's something you defo want to clarify. The other thing about overheads is their placement. Loads of people seem surprised that they get phase issues when plonking them randomly above the kit. My preference for OH placement is equidistant from the centre of the snare in recorderman fashion ( e.g. above the snare and over the shoulder)