I use the Indian Creek on my 870. I will never use anything else. Last May 16th in South Dakota, I took a Tom at 35-40 yards with 3" Hevi Shot Magnum Blend through the Indian Creek tube. It just about decapitated the bird. Glad I wasnt going to mount him, becasue the head was FUBAR.
The IC is what I believe is the best. Honestly, you need to use one that you believe is the best.
Good hunting