I'm using Ubuntu Edgy Eft at home and Fedora Core 6 at work. Though I don't run BlitzMax on either, sorry (mostly use it on OS X).
My preference so far is for Ubuntu, especially for home use. The package manager is much faster and there are considerably more packages available by default. Installation was dead simple and the download of the distro is much smaller than FC6. Ubuntu doesn't have an active root user by default, but uses sudo instead (though you can activate the root user if you want). I've got both my home (Ubuntu) and work (FC6) computers running with full OpenGL support, Wacom support and more. Even installed Beryl for fun at home. Both work fine, so it really becomes a matter of preference.
If you're using big commercial software on Linux, they tend to only have official support for RedHat Enterprise, Suse and the like. But will usually work fine on other distros.
My preference so far is for Ubuntu, especially for home use. The package manager is much faster and there are considerably more packages available by default. Installation was dead simple and the download of the distro is much smaller than FC6. Ubuntu doesn't have an active root user by default, but uses sudo instead (though you can activate the root user if you want). I've got both my home (Ubuntu) and work (FC6) computers running with full OpenGL support, Wacom support and more. Even installed Beryl for fun at home. Both work fine, so it really becomes a matter of preference.
If you're using big commercial software on Linux, they tend to only have official support for RedHat Enterprise, Suse and the like. But will usually work fine on other distros.