The X-Pro2 with Fuji 18/2 is a very good combination. It's small but not too small, it's quiet or completely silent as you choose, it's reliable and has excellent quality. Some disparage the old 18mm but I came to love it despite not being a fan of the 28mm focal length. AF is good but not lightning fast like newer lenses. On the XP2 speed is much improved over the XP1. The 18/2 has a bit of "old school" look to it, not as sharp around the edges but excellent in the center--I like that look a lot. I've often used the XP2/18 combination to wander around and see what comes along and it has almost made me a 28mm fan. I've never used the other choices mentioned so I'm no help there. One of the best things about the XP2/18 is that it gets you into the Fuji Universe. They were one of the first companies to really take the APS-C format seriously and produce a great range of lenses for their cameras. And they have the hybrid viewfinder so old guys like me can use framelines in an OVF.
Yes, yes. I've lusted after one of these for the past four years. In that time exactly THREE have come available in the two reputable camera shops I still patronize. One lasted two days and sold for AUD $1250. Another hung around for about two weeks and finally went for AUD $100 more. The third was sold to the shop in the morning and grabbed by a customer that afternoon, for AUD $1400. Hen's teeth...
So badly did I want one of these, I even checked the not so reputable quick-buck dealers looking for one. Alas, none turned up. Owners are too darn clever to dispose of them.
So for now I make do with my XE2. Odd that I like this camera so much, after buying and using and ultimately selling two XT1 (I naively thought something was wrong with the first '1', but no) and one XE2 which didn't give me quite the unique image 'snap' I want. Their new owners like them a lot, so it's very much a personal thing.
As I've written before (and this thought is shared with a few other Fujifanatics I know), Fuji make superbly good lenses in their Fujinons but the cameras, well, they do leave a bit to be desired.
As for lenses, the Fujinon 18/2.0 is my favorite lens. It's an early version and an old design and not as tack-sharp as the 18-55 set on wide angle, and it tends to bend the verticals a little if I go too close to my subjects with it, but it has a sort of 'character' I like, it's light and easy to use and best yet I can set the f/stop by hand, which means a lot to an old geezer.
I doubt the Fujis will ever replace my Nikon digitals and I still believe the Z5 and a 28/2.8Z is the best ever Nikon combo - Ken Rockwell agrees with me on this, so I feel vindicated in repeating it - but if a good Xpro2 turns up in a shop when I'm there I may succumb to a sudden fit of retail temporary insanity and clean out my bank account. With photo gear, odder and stranger things have happened to me in my long life.