I put in 25 6-8 inch channels a few wks. ago and with very little fishing for BG(3 hrs) have already caught 5 of them with worms or small shiners. I use a feeder so they are not overly hungry. I would think it is a tossup. Small blues are terrific eating and very easy to skin, but get very large if not caught. If hybrids grow faster than them, I would hope I could catch them all due to their aggressiveness. I may lean toward getting some of each just to check the growth rates etc., and restock the ones that fit the scenario best.