To me that is Fuji's weakness the micro contrast. Yes, I don't see that with the Olympus which i do have also. I think it either the sensor or the noise reduction or a combination of both. Images with soft skin like this are a hard sell nowadays.
A lot of that comes down to processing techniques. The detail is there, if you're willing to go through the (hopefully temporary) hassle of getting to it. For instance, doing your initial detail processing in another program, like PhotoNinja, and exporting to a TIFF that you then continue to edit in your adobe suite as usual. Even without that step, simply removing all noise reduction and lens correction from Lightroom will bring back a lot of your detail. I'd post an example but I don't want to encroach on a wonderful thread.
Some more shots from the beginning. Re-edited a while later since I beefed up my Photoshop skills earlier this year...
First shot in the series was what killed my 56 APD. Autofocus motor creeked and yelled throughout the session, and this shot was the final one before I decided something was seriously wrong... You can see the focus was missed, as turned out later were 98% of all shots from this session. I sent in the lens to Fuji and got it back a few weeks later. They changed out the autofocus motor, but problems were even worse after that. Sent it back a second time. They changed the whole optical assembly, and now it seems to have been fixed.
Click on the pics to see full size.
I can't stop staring at the second photo in this post. Mostly because it reminds me of a very film looking photo from the late 90s maybe? Not the styling, or the girl, but just the way the image itself comes off the page. The way the detail is rendered. I love it. Can I ask what you're doing as far as lighting is concerned? Some of these look to be natural light (which you have an excellent eye for, in my opinion) but others look to be strobes, which I haven't seen many good systems for on the Fuji system. Please keep up the great work, and keep sharing!