Old saying, you can shoot a Browning or a Beretta OU, but not both, well. I have tried both OU guns and I shoot the Browning Citoris better. Try both in a 20 guage with 30-32" barrels. Clays uses a longer barrel well, I have a few, skeet uses the shorter barrel guns better.
Make sure your length of pull is correct with and without a jacket, and when mounted by just throwing the gun up, the gun comes up so your eye is looking down the center of the barrel, naturally. Do not try to adjust your hold, if the gun fits right you are looking down the barrel, if it does not fit right you are looking down the side, at the top of the muzzle, etc, etc. Your eye is the rear sight, so the gun must come up naturally. It is only which gun fits you best and only you, not the brand.
The auto guns, the 391 Beretta guns, I do have four, do have a hidden benefit, they come with an adjustment washer for the butt stock. You can raise or lower the comb and change the cast on or cast off with the washer setting. They are tough and are great guns, but they must be cleaned after every outing, especially the gas piston. If you take one to Argentina, clean it at lunch also. Angle port made a replacement for the bolt release button, a lever, that is well worth the replacement.
In Argentina they say, if you want to bring an 1100, bring six, five for extra parts, to keep one running. The 1100 simply can not stand up to 2,000 birds a day on a 10 day trip. Winchesters literally fall apart. The Benelli is tough enough, but recoil operated, so they are also tough, on you.
That flex stock on the Benelli can slap the dog out of you. Got rid of mine after just one trip to the range. I tried it, not for me, not into being beaten in the head at the range. The Franchi and Benelli both have a narrow loading port and will result in the famous taped up thumb in a bird field.