I’m not a fan of Blade technology. It’s not that it’s bad or that I think better of rack-and-stack solutions (I might be partial though), but my experience has been less than stellar using blades. Perhaps that will change in the future, we’ll just have to see.
Nonetheless, Kevin Houston has a post with a great PDF comparing the different offerings from Cisco, Dell, HP and IBM.
Hat tip to Scott Lowe.