Originally Posted by acavengo
Sheldon Brown recommends an even/even for the same reasons that you recommend an odd/even.
From Sheldon Brown:
With even numbered sprockets, only the teeth that correspond to the "stretched" half links get deformed, and by doing so, they work fine with the elongated half links. The alternate teeth don't wear as much, since they are dealing with normal pitch half links.
Reasons for EVEN/EVEN or ODD/ODD (what sheldon is saying):
Your entire drivetrain will wear together. This means that if you leave it on there, even when it is pretty worn, it should still work well together. This is a good idea for people who like to switch their ENTIRE drivetrain at once.
Reasons for EVEN/ODD:
Your drivetrain will wear EVENLY. Since the narrow links will be contacting alternate teeth, no teeth will be worn more than others. This is good if you like to change out parts of your drivetrain at different times. If you just change your chain and not your chainring and cog, it is better to have evenly worn CR/cog instead of every other tooth being worn and every other tooth being new.
An arguement could be made that if you are careful to put your new chain in the same orientation as the old (narrow links on worn teeth) then you can change out your DT at different times and still benefit from E/E or O/O. I'm not sure how this works in practice as you are replacing a worn chain with an unworn one, which could still contact the teeth differently.