Lower resistance atomizers require more current to attain the same power (they use more battery life) as the equivalent higher resistance version. Lower resistance atomizers heat up quicker than higher resistance ones, you may find that with some atomizers you have to give them a second before they start optimally vaporizing liquid, this time will generally be less with lower ohm stuff.
Lower ohm stuff is generally considered to have better flavor, vapor, etc. Watch any rebuildable video, everybody is building lower Ohm stuff not 3-6 Ohm coils or something crazy like that. What does that tell you? (Yeah yeah microcoils and other things but that's a topic for another day.)
That being said, some people do prefer Standard Ohm atomizers (2-3), I would recommend getting both and seeing which you like more.
Whatever you decide to do, you need to consult something like this before you hit that fire button at X Voltage on an atomizer.
Vaping Power Chart