I don't have experience with the Rock Island Armory weapon, but I give HIGH marks for the Para Ordinance P14. I have the single action variety, and have nothing but great things to say for it. It's worth looking into, and MECGAR makes fantastic mags for it.
Accurate, reliable, and well made. I ran 800 rounds through it at Frontsight, and the only malfunctions were the ones they MADE me induce as part of training.