If your buddy has an 1187, why not take it out and see how it fits.
I'm sure that one shotgun is likely better than the next, but there really is no way to compare them evenly, they ALL have there highs and they all have their lows. They all have their bugs, my buddy just sent his Extrema back because it won't cycle properly(due to lack of maintenance I'm sure). As well as a 20G Urika that won't cycle the 3rd round, fresh out of the box.
Not slamming Beretta, just making a point that sooner or later they all break.
Why not just go down to the local gun desk and have the guy lay out all three, or four whatever models on the desk and leave you to them. One of them will fit better than the others, thats the one you buy.