Ubuntu. But I would love to deploy more on Solaris or Open Solaris. When you have to deal with performance issues then Solaris is king. It has so many excellent

Ubuntu. But I would love to deploy more on Solaris or Open Solaris. When you have to deal with performance issues then Solaris is king. It has so many excellent tools to figure out what applications are doing. Standard linux can't even show on a per-process basis what is causing disk io for example. Stuff like that is a no-brainer on Solaris.