I shoot, a maverick 88 field a $200 pump gun, this year it has become my backup gun and my sea duck gun I have killed plenty of birds in the last 6yrs with it. It is starting to show signs of wear in the receiver, since it is an aluminium reciever and a steel bolt and carrier and the shotgun has seen 1000s upon 1000s of shells. It always goes bang and nothing on it has broken or let me down.
My new primary puddle duck/goose gun is a Win SX3 semi, this thing is amazing it fits me beautifully and I haven't had any issues that I didn't create myself (purposely fired to failure to cycle due to a lack of cleaning and getting it really dirty) $1100.00
My wife shoots a rem 870 20ga, I shoot it probably 5 hunts a year (I love that lil thing) it is a steel and lumber setup, but fits her very well and is like an extension of my hand when I wield it. it has not failed up once kills geese and ducks a like, requires a lil more love in the cleaning and oiling department to stay looking real purdy $370.00
all three shotguns are 3" chambers
The reason I don't hunt and O/U is that I can't afford the ones that I like
the bigger thing with shotgun selection is fitment comfort and price. usually the last of the list limits the ability to choose between the rest. my suggestion is find your price range, try every shotgun in that price range and then every shotgun $300 more than your limit. find the ones that fit you the best when shoulder and functioned. after that do you homework on said models, find out what other people that own them have had to say. Then from there figure out if the best shotgun for "YOU" is in the price range you originally assessed, if not find then you got to figure out how much better the fitment of the more expensive one is and if you can justify it to yourself.
Cause at the end of the day you have to use it and be happy with your procurement, having faith in your weapon is half the mental battle. If you have lost that mental battle before you start your hunt, you won't hit the broadside of a barn from the inside.
just my 303cents