I feel lighting choice should be determined by grow style. If you are going to keep them low and/or with an even canopy, LED/Fluorescent will work great. If you are going to have taller plants with huge colas, you want MH/HPS/CMH for penetration.
Regardless, of what lighting you choose, more is generally better, and I would recommend you use more total wattage or grow less plants... unless you are SOGging.
If you choose HPS, be careful when they are seedlings.