[Boost-users] Recommend Unix Compiler and Unix Platform?

Dear Boost Users: I have developed a number of reliable web based applications and ISAPI filters for Windows in C++ using several of the Boost libraries. Although I have no experience in Unix, I am very interested in doing similar web development in C++ on Unix. Can someone recommend a good compiler and platform (Unix Variant)? I've noticed that the following seem to be pretty popular for web servers. To keep things easy, I guess that I'd be using a specific variant for both development and web server: FreeBSD, Fedora, Ubantu, and CentOS. Please Advise, Jeff