OT - Best Business Credit Card?

We've had a company VISA card for many years. It has no annual fees, we
never pay interest -- but we also don't "get" anything out of using it,
either. In the past we've bumped up against the credit limit during the
month, and the company (now called "Chase") has been very slow to increase
the limit. Although they always responded by increasing it as needed,
their recalcitrance to do so has been a mild aggravation.

Now that we've been incorporated in Iowa for over eight years, we're getting
bombarded with dozens of offers for business cards. (8 years must be a
"magic number" for them, like 5000 feet is for runways...) Almost all of
these cards offer "rewards" that vary from "Frequent flyer miles" to
discounts on all sorts of things. Interestingly, almost all the new offers
START with a higher credit limit than our current card offers.

Whose is best? What card do you guys use?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"