Z01 and Z02 were batches I split around this time last year so that one is coming upto a year old now. They were decent and most people would like them.
If you can I'd really recommend getting ahold of a 2012 batch. Something like C01 or E01, I think E01 from this year is probably the best balanced overall and is quite tenacious. If I was buying a bottle for myself this would be the one I'd get (my previous favourite was N01 from 2011). Both of these have top drawer heart notes which seem to do away with missing 'periods' some people get.
I'm not sure if E01 is available in the states yet as its the latest one out in France/UK. Everyone has been very happy with the recent splits I've done of this one.