In my opinion there isn't a clear cut number one team at present. To win in alien conditions not just your backyard or againt the minnows.
Inspite of what they have been through, players being jailed, unable to host international cricket, you have to give credit where credits due.
Englands batting had flopped 3 out of 4 times. That's what cost them. They had a negative approach chasing this small target. You must try to kill off the game as soon as possible chasing a small total. I have seen it happen too many times. I would've thought England would have wised up to this.