Gooner n Proud
a.k.a. nasri_8 and Voice of Flamini
I completely forgot about Wilshere whilst writing and I would without question take Wilshere over him. I disagree with Ramsey comment though, Lallana offers more on the wing than just cover for the full back to overlap.
Ramsey does way more than cover the full back in a wide forwards role. He very much possesses that forwards instinct which is demonstrated in his movement and propensity to find space, he's a more intelligent player who contributes to our passing game and is productive. Lallana is possibly slightly quicker, but Aaron trumps him in every other aspect.