In the event you didn't know, Beretta owns Benelli.
The Teknys will by far reduce recoil over a Benelli for the fact that it is gas operated versus the inertia operated Benelli.
The self cleaning gas system on the Beretta is for all practial purposes just as reliable as the Benelli. (unless you submerse it in water)
The Teknys sporting weighs 6.5 lbs without the mercury reducer in it and 7.3 with it in. Even with it in it weight less then the M1.
All the ones you mentioned are good guns, if you ever pick up sporting clays etc.... you will be happy you went with the gas gun (teknys)