It's kinda ridiculous to me when people say that using loops isnt being creative. sure, it is if you just bang one over the top of a kick and then that loop becomes the focus of your whole track but there's so many ways you can use a loop creatively and make it 'your own'. i just love using machine loops in ableton's sampler and then just drawing in one trigger midi note and finding a good point in the loop to make a really unique stab sound. distort the shit out of a complete loop, put a gate on it, run it though an echo delay with a little flange on it for constantly changing rhythms. even use ableton's new groove templates feature and give loops a new shuffle to fit with others.

at the end of the day, any old sod can use a preset. whether that's a preset synth sound or preset loop from a sample CD. it's all the same to me. just get creative and use all the tools at your disposal imho :)