Voile is the only game in town now. Burton was unable to make their system unique enough to avoid patent infringements so they have now liscensed the Voile system. I guess you can tell I use the Voile. It's simple, strong, and reliable. Your bindings mount on slider plates that slide onto pucks and fasten with a pin. When in tour mode you just slide the plates of and connect them with the same pin to the touring brackets.
Four hole pattern is all you need so you should be good with the Burton bindings. You can find loads of info at the Splitboard.com
forums. I have had my splitboard for over three years and 200+ days with only a broken tail clip. The stuff is reliable. I have never noticed a difference between the performance of the split and my solid boards.
As far as what split to go with that is up to you. The voile regular series have a softer flex. If you want something a bit stiffer (especially if you ride PNW and Cali climes) go with the Burton S, Prior, Neversummer, or Voile Mtn Gun models.