This is a bit of an odd question... Surely if you want to learn unevens you should aim for the most shots from the fairway per hole, no?
If so, the par 5s course would be the logical choice, especially if you play all the holes as 3-shotters. Play your 2nd trying to find the flattest spot for a wedge approach. With this method, you'll also notice the difference between uneven lie effects with long-irons, and with the wedges (which have so much more club angle that the lie has more influence on the result).
But, it sounds like you're really after a gentle introduction to unevens, so I'd recommend Bethpage back 9, where most of the fairway slopes are very gentle. You'll get to see the effect of slow-moving sidehill and uphill/downhill dots and if you choose low wind to practice with (which is very low there), you won't have too much else complicating your assessment of the results.
Good luck, and I hope you enjoy the journey. Unevens does take a little bit of getting used to, but many of us here have found it well worth the effort, making for a much better, and more 'thinking' game.