I'm with [MENTION=137354]swiss_global[/MENTION]
I find the 77W to be substantially better for sleeping, especially since I am tall.
If you are short, you might prefer the 2x2x2 layout of the 333 because you can choose a middle aisle and not have anybody stepping over you.
The later flight is also a no-brainer for me, as on a 2pm I would expect to be falling asleep just before arrival to the destination.