Not an economical solution for the occasional splitter of serendipitous beech trees, but my favorite splitter is the flywheel-powered "Super-Split." I have an older one of these (fortunately inherited, so I didn't have to pay for it), and it splits almost anything you can throw at it with a 3/4 horsepower electric motor. Nasty logs can take two or three cycles, but the overall speed is so high that it still ends up being faster than just about anything else. Scary fast, in fact. You need to be really paying attention, and keep all attempts at assistance at bay. But watch the animation at the web site. It's that fast in the real world, no hype. Too bad it's so expensive.