Josh has been known to replace watches lost in transit on many occasions.
However, if you're in the EU, then using Chris makes a lot of sense. He'll charge you more to despatch from within the EU initially, but it removes the chances of customs getting their grubby little mitts on your precious rep. Same goes for Precious Time or Narikaa.
Personally, I'm quite happy to continue to use Josh, Lawrence, Ruby and the others as I've only had one faulty watch out of 9, and that was dealt with without problems of any kind (by Josh). It's really down to your personal comfort zone, I guess... (I'm in the UK btw).