Every since FF1 I've loved Black Mages (and dragoons, for that matter ^^). So that's what I chose for my character in FF11 - a femtaru BLM. I knew since ff1 that red mages were a mix of black and white mages, with some fighting skills, but never really excelled at anything, so if I were to choose it as a subjob half the spells I already would have had from my Blm job. So I decided I'd chose Whm as a subjob, and have a BLM who could act as a backup healer in the party.
However, I've been thinking about a few things in the last days. For one, if I were to chose Rdm I'd get HP and INT bonuses that I wouldn't get from a Whm. Those two are really important for a taru blm. Since Whm's use mind I'll never be remotely good with my whm spells since tarus are defficient in mind, even moreso if whm is a subjob.
So if I were to chose a Rdm as a sub, I'd get more HP and INT boosts, making me a more specialized and powerful damage-dealer, and I'd get some basic white spells and some enfeebling magic. The downside is many of the spells will be duplicated, and those that are not will not be as powerful as whm. So, should I choose higher HP and INT, or a better repertoire of Whm spells?