Hmm not really. SuSE is by far the leading enterprise distro and is growing much faster than any other distro in the enterprise arena. I just left a 4-year stint at Oracle where I can list out a laundry list of crap that was problematic in Red Hat and not SuSE. I started using Linux at kernel 0.97 and once I started using SuSE about 7 years ago I've never looked back. Now that Novell owns them they have the corporate backing and support that was holding it back for so long.
The problem is the average linux user hardly ever gets to see the OS under a true enterprise workload. Throw a couple hundred EMC lun's at it, then put the kernel to work......