Meh - to each his own.
I can't really find a new gun (made this century) that I really like. They all just feel wrong. This is especially true of shotguns and rifles.
My first reach shotgun is a Savage 520 pump. But OP asked for semi auto.
I'll take the Browning A5 or any of it's clones (Remington 11, Savage 720) and never look back. I'll pass on the new production A5s though, even those in 16ga.
Besides - if you mount a bayonet on a long action like the A5 you've got one hell of a sewing machine out at the end. lol