wearing dev,sysadm, architect hats running these platforms since 1999. i had the most consistency and general usability with freebsd. freebsd is easier to maintain and learn its features, docs are great. choose the one that you need to learn the least to run, install and maintain. yes i am somewhat biased to freebsd based on my own experience. the past say about 5 years solaris gave me many headaches like library dependecies, package management. freebsd, linux have good package managements. solaris has solid reliability and performance. all things considered, go with freebsd. freebsd security is easier to learn than selinux.
