Well, if you truly think about what is the most eagerly awaited series, its gonna be India-Pak by far? Why? Just go to cia.gov and check out the populations. More people follow cricket in India than there are people in England and Australia.
In terms of quality cricket action, I think India vs Pakistan also will lead the crop. Why? Both teams are looking in top form, and this competition being just a month from now, this is going to be top-notch cricket. The Ashes is quite a ways off, and the Aussie team may be severely depleted by then.
I think the Asia Cup and ICC Champions Trophy will be mere money growing tournaments. I will try and go to an ICCCT match if there is one in Bombay (hopefully the final is here or Delhi, and not Eden Gardens). Also, what time is this scheduled? It's not unlike the ICC to schedule it in the middle of the monsoon.