LED, MH or HPS for veg, please tell me your experience and preference

my friend has been doing a crop for 3 month veg only with 3 big led lights. they seem very small for 3 month old.. i lent him 1000w of hps and now they have shot up... what are your thoughts because we have just put some blue cheese in the veg tent under the led... i dont know if to stick with led for veg or go with mh or even hps.. please tell me your experience. yeild is our main priority closely followed by taste and high.. thank you

any pics? what kind of led is this? any brand or name?

im a new grower with no experience and i've seen some of my plants take between half and one inch/day at some point, and i veg under led (bonsaihero panel). so its more of a generic/cheap led issue i guess.