Wow, aside from powerdocs post this thread is totally off the tracks. Op should post this on the professional board to get a more well measured responses by people that are experienced and not just armchair quarterbacks.
I haven't used the xpro yet, but have used the x100 at weddings on and off since last march. It works very well for candid shots and in tight quarters were the d700 would otherwise overwhelm. The autofocus is too slow, particularly in low light, to be of value in any other scenario in which clients are expecting to see results.
User reports here indicate the xpro autofocus performs similarly to the x100. In order for the xpro to be a viable option as a main or backup camera it would need an af system drastically superior to the x100 in terms of speed and reliability, a larger buffer a well thought out flash system, and hey, an array of decent lenses doesn't hurt either.
Not seeing any of that right now. Perhaps that will change though I expect it won't. Fuji hasn't designed this to a professional tool for wedding photography. It's an advanced point and shot camera, just like the x100. And it will excell when viewed from that perspective, imo.
All that said, if I was a wedding guest, I would very likely bring an xpro instead of my m9.
