I agree with LingCod- whatever you choose, practice with it. And be obsessive about cleaning it. Clean the breech and barrel with standard muzzy solvents or Windex, a copper bristle brush attachment, and lots of shotgun patches (my preference). Clean the trigger assembly in a well-ventilated area with brake cleaner once or twice a year. Think about putting a peep sight on whatever muzzy you get.
My first muzzy was a Knight Bighorn, and I still love that rifle. Northwest-legal, easy to clean, light enough to carry around but heavy enough to help with steadiness. Have taken eight deer with it, and still hunt with it occasionally. I know I am biased, but anything by Knight is a solid hunting muzzy.
Good luck, QuackAttack- have fun.