Yeah you're right about that, in my pessimism I went a little to far. And also Valbuena is more than 'okay'. But the only point I wanted to make is that Arsenal need some players that reinforce the squad and not some moderate players like Chu-Young Park. Because otherwise the gap with Man Utd, City and Chelsea will become irreconcilable.
Better than Arshavin or AOC isn't that hard, Arshavin is way over the top, but I prefered to see Mata (now chelsea) or Hazard coming (to expensive, asking around 50 mln!). And you wouldn't see Griezmann play at Real or Barca.
So because he wouldnt play for those two he isnt good enough? Utter nonsense. Is he good enough for Arsenal? Yes he is