have seen both mh and hps produce good results used for both veg and flower, a switchable ballast would probably be best but if you was limited to one or the other would probably use a hps.
flouros are great for starting clones and even vegging for a short amount of time while they will not have the lumens of a mh or hps its more efficient for alot to use a few small flouros when the plants are small as they take up less space and use less electric, then the plants can be thrown under a hid for longer veg or flowering.