I primarily main Dragoon. Sure, watching speedruns of FFIV may have had an influence, but not a strong one. Plus, during Phase 2 of the ARR beta it was one of only three classes that were available. Also, I wanted a change of pace from what I had been playing in WoW for (at the time) six years. Yes, for years I mained Hunter and Paladin (with Balance Druid in Cataclysm, and the only reason I never mained Druid before was because I still don't like Tauren Druid forms). So I didn't want to play a Bard, and when they added Gladiator, well, I didn't want that because it reminded me too much of the Paladin I played (even though I was Retribution). Despite having among one of the more complex rotations, I still rather enjoy playing Dragoon. (I am starting to grow fonder of Ninja, though.)