Obviously the answer depends to some degree on the various versions supported, but in general terms - is there any reason I should pick one over the other? PCL for art and PS for text? Does one typically require less RAM on the printer? Speed differences? For home use it doesn't matter and only professional print people will notice and care?
Update: No specific programming is involved, or any specific programs. Just simply put - if a given printer supports both PCL and PS, is there an advantage to picking one over the other? Is there a pros/cons list somewhere?