Im running 4x QB96V2 elites at between 600 and 700 watts in a 4x4 and love them. They have added red diodes and I have noticed they really help to reduce stretch and kick things into flowering quickly. Easier to control things for me… dont have any experience with the others. Migro on youtube does some cool comparison videos of a bunch of lights and how efficient they are etc…
They seem to work really well for veg all the way thru flowering. I think they end up at right around 3500k