Personally i like a level of elevation that only the west stand can offer. Gives you the best overall view of the pitch and team shape and formation in my opinion.
If price matters to you, then go with the north. If it doesn't and if there is availability then have a look at low numbered seats in the West, that's where the majority of the noise comes from.
i don't think i would sit in the East if someone paid me to. On the plus side i guess if you are sitting in it, then you don't have to look at it like i do from the West.
Ditto, It always annoys me when I am late to the party for cup games and get shifted to the east or north west as its absolutely dead.