I've brewed both and liked both of them quite a bit. I'm getting better reviews with the deception stout from the neighbors and my wife. I did the porter a couple years ago, and my process has changed/improved since, so it could be an improvement in my brewing rather than the recipe being better. Hard to say, but I'll probably do the stout again before the porter. I think the small lactose addition really helps smooth it out. I also really like the Denny's Fav yeast. I made an amber with it after the stout and it came out great as well.