Zach,
Having fished both extensively in the last 10 years I’m going with the Bighorn. It offers several positives that the Madison does not. First and foremost it gives my son who is new to fly fishing an easier learning curve. The fish density is much greater on the Bighorn, and it’s loaded with several fish in the 14-18 inch range. On my list to hit is the White river in your backyard which is without a doubt a great opportunity to grab something over 24 inches. The other big selling point on the Bighorn is cost, it’s cheaper trip overall since we do our own guiding. You do not get the scenery like at the Madison but it’s still a great Montana skyline. Thanks for your input Zach, looking forward to this seasons podcasts!