I have had bad experience with G3's and would hesitate to buy another.
I would look for an older 1100 1970-1990s' I wouldn't be stuck on a trap model either.
I had a classic trap and found the comb too high.
Regular configuration 1100's with the right choke will smash them all day,
do your fellow shooters on the trapline a favour and get a shell catcher.
Beretta's are also execellent,
I would avoid benelli however, they are light and have more felt recoil due to being light and inertia operated. They are also overpriced because they are trendy.