What I really like about my NI Battery 3 drum machine plugin is the huge variety of sounds that I can quickly call up with it. On the other hand, I don’t think it’s the best when it comes to realistic acoustic drum sounds (if that’s what you are looking for then you’ll have more luck with something like Superior Drummer 2.)
I usually use Battery 3 when I’m looking for drum sounds that sound sampled (rather than trying to emulate live drums.) For many genres of music this often fits much better than an acoustic drum emulation.
For example if you’re trying to create an Aphex Twin inspired track you’ll probably get a lot more use out of something like the “Glitch Kit” in Battery 3 than the realistic acoustic drum emulations you can get with Superior Drummer 2 or Addictive Drums. (Although a good argument can be made that it would be more creative to try to glitch up your own drum tracks rather than use the “Glitch Kit” samples.)
There’s also a lot of cool percussion and world music type “kits” in Battery 3 which sometimes come in handy. To my ears these usually sound pretty “sampled” too (rather than realistically emulating real percussion) but I still think they can be quite useful. It really just depends on what you are looking for.
When it comes to this sort of thing a minute of sound is worth a thousand words so here’s something I just put together to give you a small taste of what Battery 3 can do (just 8 of the over 100 kits included) —>
Battery 3 is included in the Native Instruments Komplete 8 pack along with a ton of other stuff.