Good tuning and good sticking/stroke techniques are equally important to get a good tone out of your drums. Don't worry much, cos it'll take time and practice, trial and error to achieve the best tone out of your drums. My pointers:
1) snare drums: tune the resonant/snare side tight. The batter head, tune it up fairly tight but not as tight as the reso side, and do not overtighten it cos u'll get that choke tone. If u wanna get tighter/popper/more high crank tone out of your snare, then get a piccolo snare like a 10" or 12" snare drums. Do not force and tune your regular 14" snare to get that tone. For soft hitter, u might wanna tightened the snare wire to get good responsive snare sound, while for hard-hitter, loosen it a tad bit.
2)toms and bass drums: tune your reso and batter side at the same tension. Loosen your lugs/screw 1st. Then finger tightened the lugs/screw til u can't tightened it any more. Then use your key to tune it up at half-turn. Do it abt 3-4 times(some drums, u might need to turn more) then check the tone. The heads should be 'seated' well now and u could get a decent tone. Never ever tightened or loosen your toms to get a lower/higher pitch eg: if your tom is 12", do not tightened too much to get a 10" tom's tone or if you have 14" tom, do not loosen it to get a 16" lower/deeper tone. If you wanna get higher or lower pitch tone drums, go buy the additional tom. Bass drums tuning is the same as toms.
And never ever try to tune your drums to a specific key! U must tune the drums to get the best tone out of it. When drumming, let the drums work for you, not you work for the drums. Cos if u tune it wrongly, you'll be uneasy and u can't drum well cos of the 'weird' tone you get out of the drums..