Neither, I would buy the Canon PowerShot A40 for a few bucks more and it takes CompactFlash vs SmartMedia which the Fuji and Oly take.
Canon PowerShot A40 with FREE 64MB CF for $249 at your local OM B&M this week only after $50 off $250 coupon.
PROFESSIONAL REVIEWS
imaging-resource.com (with sample pictures)
dcresource.com (with sample pictures)
steves-digicams.com (with sample pictures)
dpreview.com (97 owner's ratings almost 5 out of 5 stars in every category)
CONSUMER REVIEWS
ePinions.com (100% recommended by 8 reviewers)
Amazon.com (4.8 out of 5 stars with 39 customer reviews)
CNET.com (8 out of 10 stars with 95% positive reviews)
However if I HAD to choose between those two, it's easy the Fuji 2600 is an awesome digicam, I'd pick that no doubt about it.