I highly recommend the wood pulp/resin type. It's the most sanitary, low-maintenance, knife edge-keeping cutting surface you can get. Wood is a close second. I think plastic boards are crap.
I was lucky enough to strike up a conversation on another forum about cutting board sanitation and use when a guy who works for a company that distributes the wood pulp/resin boards offered me a free sample. This was some 10 or so years ago when you couldn't buy them at Bed Bath & Beyond, and were only distributed to professional kitchens. I said sure, and he sent me a 24"x18" totally free! They're heat resistant, and I can honestly say I don't think I'll need to buy a new cutting board ever again. It's all the benefits of wood and plastic, with none of the downsides of either. I can't recommend this type enough.