How about neither. Of the two I would I would take the Mossberg.

For the money of the 11-87 you can get either the Franchi 912 or Winchester SX2. Both have better quality and will cycle 1oz field loads. Both are lighter and have better balance. The SX2 is a little easier to clean and the 912 is way easier to clean than the other two. The 912 has an automatic magazine cutoff. The SX2 has a $100 rebate to the end of November. With the $100.00 rebate even the Browning Gold 3 1/2" is close in price.

For all around use a 3" model is a better choice.