Hey all. In about three weeks I'll be leaving on a weeklong honeymoon to Mexico. And as we all know here, THE most important decision before this trip is what camera to bring.

So of course, I have to share my OCD lists of pros and cons, in hopes of having my decision justified.
We currently own a GF1 with just the 20mm. I love this combo, and I've been quite pleased with the results. However, I've been finding myself increasingly drawn to the possibility of swapping it out for a XZ-1 for this trip.
Background Info
- I shoot only RAW, so jpeg output is of no concern.
- I don't want to carry around anything more than one camera/lens combo.
- The ability to get some subject isolation through DOF is important to me.
- Things I'll be taking pictures of:
- Portraits of my fiance (at least half the photos, I promise).
- Landscape/scenery pics. Ruins, beach, jungle, etc.
- Street shots at night.
- Bar/club shots even later at night.
Pros for XZ-1
Zoom
I've done alright at using the 20mm for portraits, but know it's far from ideal. The XZ-1 can zoom to good portrait lengths, and it looks like it can actually pull off some subject isolation through narrow-ish DOF. And having something twice as wide as the 20mm would be very nice for scenery, streetscapes, indoor club shots, etc.
Stabilization
Would be very handy for those night street shots, and for the indoor club shots (yes, yes, I know the subjects will still blur).
Size and Weight
It's hardly any smaller than the GF1, but even the GF1 can get a little heavy around the neck after carrying it around in the heat all day (yes, I'm pretty wimpy). And the less conspicuous the camera is 1) the less likely it will be that it gets stolen and 2) the more likely it is I can bring it into a club (and not completely embarrass the fiance).
Cash in my pocket
Not a deciding factor, but I figure we'd have at least $250 more in my pocket to party with in Mexico after selling the GF1 kit. That's a lot of cerveza. Or a nice tour of some ruins.
Pros for GF1
The Sensor
The sensor is more than 4 times as large. No matter how you slice it, that's going to produce a nicer RAW file to work with.
Noise
I've done countless comparisons of RAW files from the two cameras, and my subjective opinion is that the GF1 is about 1.5 stops better. That pretty much offsets the IS in the XZ-1.
Build Quality
The XZ-1 feels nice, but nothing compares to the GF1. That thing is a solid piece of "Made in Japan" steel. The camera, paired with it's strap, could probably be used for self defense.
Ergonomics
The GF1 has perfect ergonomics, for me. I've never brought it up to take a shot and realized I'd accidentally screwed up a setting by bumping a control. Every setting I might need to change has a dedicated button.
The Lens
The 20mm is the sharpest, most contrasty lens I've ever used. I really, really like this lens. The fixed 40mm equiv focal length though is kinda in that "good enough for anything, but not
great at anything" range. I can take portrait and landscape shots with it, but they won't be as nicely composed as if I had the range the XZ-1 has. And really, the XZ-1 lens is pretty darn sharp too.
So, guess it really boils down to whether I'd rather have the nicer sensor and perfect ergonomics, or a range of focal lengths and IBIS.
If you can't tell, I'm definitely leaning towards the XZ-1. But I just don't want this to be the second time I've sold a GF1 and later regretted it.
Which would you take, and why?
Thanks!