[Best shotgun for all types of birds.]

3 hours ago, Diesel79 said:

I’ve grown more fond of the 24” and 26” barrels.  I’m selling my 28” M2.  

Okay but why the shorter barrel in 12 gauge?  The M2 Waterfowl Performance is a 20 gauge with a 28" barrel.

Sorry for all of the questions.  I'm a newbie with shotguns but I know I don't want to buy a cheap one for my first and regret it later.

why are the waterfowl and turkey performance both 20 gauge?

[Best shotgun for all types of birds.]

Been looking at getting one shotgun to do the overall work of waterfowl and maybe quail or pheasant every now and then.  I'm leaning towards the SBE3, SBE3 BEST, or the Ethos Super Sport.  Of the three listed which would be best for what I'm wanting to use the shotgun for?  

As far as I can tell the only difference between the Ethos and the Ethos Super Sport is the the carbon fiber?

Side Note:  I have also contemplated on getting the Super Sport Performance Shop but I feel it is geared more towards clays and competition.  Please feel free to correct me if I am wrong.