The Panil is better than the Reinaert. What sort of sour beer are you looking for? There's more than one style when it comes to sours, and they're all sort of different. Flanders reds, oud bruins, the flemish sours, berlinner weiss, etc. My favorites are pretty much the flanders reds and the oud bruins. If you can get your hands on a bottle of Duchesse, La Folie, Monk's Cafe, or Petrus aged pale, I think you would have a good shot at having a definitive sour. Those are easier to find than say Supplication or Beatification from Russian River or anything from Lost Abbey and they're all fantastic beers.