4-4-1-1 for me: Krul, Simpson, Williamson, Colocinni, Santon, Obertan, Cabaye, Tiote, Jonas, HBA and Ba
Wouldn't necessarily play HBA as a #10: I'd play him in between Sagna and Koscienly but a bit deeper: like a 2nd left winger and have Jonas slighly infield: basically narrowing the space for Arsenal