The team selection wasn't terrible, tbh.
Arsenal: Szczesny, Coquelin, Vermaelen, Koscielny, Monreal, Diaby, Rosicky, Arteta, Gervinho, Oxlade-Chamberlain, Giroud. Subs: Mannone, Sagna, Podolski, Wilshere, Walcott, Ramsey, Cazorla.
That's a strong bench, and there should still be enough in that first team to win it. I didn't see the game, but from what I heard Gervinho didn't play well, again.
As for Bayern, they've scored 57 goals in the league and...conceded 7. I wouldn't really fancy playing them, at the moment. Not in their form. Can see them winning, even at the Emirates.