I feed rats if they will eat them. I finally got my oldest switched over to rats and just started feeding my Albino a small rat instead of 3 mice. Now I just need my female to get older and get her switched.
I buy live @ Petco and a sm rat is 4.99 compared to mice @ 2.29 x 3. So it is cheaper and easy to feed 1 rat instead of 3 mice per feeding.
I keep a careful eye when I feed and if my group doesn't hit the rat within the first 2-4 mins they aren't going to and I remove it.
If you feed live you feed live. I don't see why one critter is more important or harder to feed then another. It is what it is. I don't value one more than the other or consider one more of a pet than the other. Tis food in my eyes.