each one.. there is no ruler at all.I use nuendo and cubase and reason sometimes makes great fun,also a bit starting into ableton but you can do great sound of any genre with all of them logic,protools,fruity,reason,cubase,reaper,nuendo,acid,ableton etc Nuendo and Steiberg should be the more complex ones while reason I find is a comfortable way to begin with if you have absolutely no clue and is feared of that many options.
Learn good your sequencer ,read pdfs manuals and study this to enlightment.I hope that helps a bit .Cheers