I do see Barrett winning the WHC Money in the Bank ladder match, the WWE seems to be very high on him and he does have the tools to be a World Champion. Besides, it's about time an English wrestler became a World Champ.
But I also woudn't mind seeing Cesaro, Kingston or even Sandow winning it.
For the WWE MiTB, that one's a bit harder, because you can't have just anybody win that match. The person who wins it has to be established, but, at least in my opinion, isn't a real main eventer yet. Ryback is a possible choice because the WWE is high on him and I'm a personal fan of his. But I'd much rather have him in the IC/US title hunt for a little while. I also wouldn't mind Christian winning it so her coud have a REAL World title reign.