yup doug has it. - the end of the day, Drums & Bass are the fundamental nuts & bolts of any track. - and one bug bear of mine is hearing countless tracks with that "signature" Superior/Addictive drums" or whatever sound. - its always over the top polished for what the rest of the tracks are. and then you get the questions.... "i dragged loads of Midi loops to my DAW, HOW DO i MAKE IT glue TO MY BASS!!! (and therefore does not ever fit) - I find these types of programs harder to work with than a real kit. and even more tedious having to edit midi!.. ok granted, the real kit is setup for the track, and also the performance.. DrumSims are not. - Don't get me wrong, they are EXCELLENT writing tools, and I'll be the first to grab them if I have my producer hat on..but later they will be replaced with other alternatives.
We all hear a different sound when we mix, write, produce or whatever, I also think it matters not about what you use, as long as there is Glue & cohesion to the bass guitar.
Bottom loine, is no matter what you end up using, there is much work to do!.