I have a Ramsplitter that I am happy with for my uses. I connect mine to the loader ports.
I have the 12T version with the 3.5" cylinder. It is sized better for my tractor. I run the tractor ~1900RPMS, and can split everything I want to. My wood is mostly maple, cherry, white oak, various others. The average round is 18" diameter. It is fast enough for me working by myself.