To begin, both these beers are under the categories of stouts but, both from different breweries and with different tastes. The Belching Beaver Peanut Butter Milk Stout is simply delicious, smooth, tasty, has strong notes of peanut butter, and has the milkiness of a milk stout. The Rogue Sriracha Stout is an okay stout, it is a gimmick but, in a a good way. The spiciness is so palpable and lingers on the last taste of your tongue.
I highly recommend the Belching Beaver Peanut Butter Milk Stout as a favorite in your craft beer library and as for the Sriracha Stout, it is more of a novelty, but I still recommend you give it a try