That is alot to ask of one gun. The most important thing is fit. If the gun feels good to you you will be able shoot well in all the afore mentioned sitiuations. I am currently shooting the Stoeger M2000. It has been a great gun. I have shot Geese, Ducks, Doves and will be shooting turkeys with it coming this spring. I have never had it jam or malfunction. On your list you have two inertia operated guns (i12 & M2000) and two gas guns (spr 453 & 935). i have handled all of these guns. The first thing you will notice is the weight difference. The gas guns will be a little heavier than the Inertia guns. The i12 and M2000 are very similar since both are made by benelli. The spr453 may feel more familiar to your because it will feel alot like an 11-87 which in my opinion feels alot like an 870 (sans weight). I don't have alot of expirience with the mossberg so i can't comment on anything but the weight. I think your best bet is to go handle all of these before you buy. This will tell you whether or not you will like any of these guns. I hope this gets you started. If you have any other questions i would be happy to try and answer them.