HP P3015 vs M602 to replace Laserjet 4050

I'm a looking for a replacement for a Laserjet 4050.  We print about 30,000 pages per year of 2 up 8 1/2 X 11 labels, some card stock (about 2000/year) , as well as some plain paper.  

I'm considering either the HP P3015dn(or x) or the M602dn (or x). 

I'd appreciate any thoughts about these 2 printers or alternatives. The ability to consistently feed and print on the label is essential.

Thanks,