definitely Arshavin
If you think back that there were rumours that Totenham or Chelsea wanted to pay between £25m and £30m in the summer transfer window and realise that the shrewd business acumen that MR Wenger has that he got Arshavin at £10mor £12 to be payed over I think its 2 years then yo have to say its darn good business.
Have to wait and see true worth once his effect on the team shows but if a player of his quality and experience comes into a team of youngsters, and remember that a certain Cesc Fabregas has to return in about 2 months time and also Walcott and Rosicky and Eduardo, the quality of the side would be tremendous.
Hoping for a good end of season run-in, Gerard out for 3 weeks will almost paralyse Liverpool and seeing that Villa got very difficult games left, I cannot help but hope that 3rd place is not as dreamy as first place, actually very likely and possible.