For me I think it has to be BLM... I just can't handle the finger gymnastics involved and watching the enochian timer (which I know is easier now than it was in HW) and not letting it drop. There's just too much for me to keep track of. I feel that way about many of the dps jobs but BLM is the worst for me. While I usually heal, on the rare case I dps in a group setting RDM is my first choice and BRD is my second (though I am a bad bard that uses a macro for dps >_>).