Gervinho has been fairly gash thus far.
He was very good in preseason before being Bartoned in his first match. By the time he returned from his ban Arsenal had lost to two of their rivals by a combined 10-2 and were firmly in freefall and crisis. Combining this with the experience of moving to a new country, league, and team and you can forgive a player for underachieving. I've seen both of them play on the same stage and there was no question in my mind who was of higher quality.
Fair points.