Firstly - I think it's completely hypothetical because - for me, whether I think it's needed or not, Wenger isn't likely to be seriously interested. I'm not the be all and end all of all things Arsenal but I've watched and supported them long enough to largely know what Wenger looks for
Of course it would be impressive. He's a very good player.
The question isn't whether I'd rather have him than Coquelin and Frimpong - of course he's better than them NOW, but whether it's worth risking two very good prospects for short-term success. I'm careful not to hype them up too much, particularly the latter since he broke his leg and has only just come back but from what I've seen/what I know about them both, they're going to be very good footballers if they get a chance and work hard.
They can only go on loan/play CC games/play for the Reserves for so long before they need to be put in the first team IMO and the majority of players Wenger has trusted from a fairly young age have paid off - Cesc, Wilshere, Szczesny (so far), Song. I personally don't feel that a 3 year deal for a 30 YO who suits our system far less than Alex Song (P may be better in other areas, but Song has the advantage that he's formed a solid midfield pivot w Wilshere).
---------- Post added at 02:35 PM ---------- Previous post was at 02:32 PM ----------
Man City probably most likely. But would he WANT to go to City and risk another stint like his brief Chelsea career? Lots of money, though I'm not sure Parker's motivated by that at the moment. Sp*rs hardly need another midfielder and I posted my Arsenal reasons above!