I really hate levelling, I find it really difficult? I literally prefer to run in circles on my chocobo for 3 hours (and I have done this before) instead of levelling. Hehe!
I did a combo of BLM and WHM through main story, but levelled BLM to 60 first (whilst my friend and in game husband levelled to 60 on SCH). I then finished WHM, which I've geared. I wanted to level my mage jobs first, and the only jobs I didn't get to 50 from 1.0 and 2.0 are tanking jobs (all 30+, though~!). So, I've slowly levelled a bit of everything without much rhyme or reason. I should focus on getting my gatherers to 60 and a craft to 60, but I've been time poor and I really, really, really hate levelling!