The FN uses the same style front sight, no problem with either and a sight picture for me. Dollar for Dollar, the Mossberg is a sound investment, barrels are 1/3 the price of a Benelli barrel, so you can have 3 times the gun for the same investment.
I like Benellis, I have a 20ga M2, 12ga M2 and a SBE II and find no fault with them, but they are not the be all, end all when it comes to shotguns. Just like Browning, Winchester, Beretta, FN or any other, they all have a place in the game.
Instead of diverting the question to "buy a ???????" why not answer the question if you have actual hands on experience with the firearm in question.
935's have firing pin problems, but with the 1000s of rounds thru any of the 930s I have I have not had that experience. I have not had an issue with the canted front sight, magazine extension problems, binding of the plastic pusher assembly, failure to feed from the magazine, failure to cycle or failure to fires. The gun is only as good as the maintenance it is given.