If you want to do a bunch of different things I'd check out the challenge log, just to keep things fresh you can focus on it rather than do FATEs or dungeons all day only. It'll lead you through FATEs of multiple zones, Dungeons, Guildhest, and leves. Hunting log is another one that you can use to help break up the leveling experience. Consider bringing along your chocobo too, great exp options for your chocobo in the challenge log.

In general though, and unfortunately so (for those who don't like it, you and I in the same boat lol), FATEs are one of the best and fastest ways to level through dedicated time (dungeon leveling roulette has a superb exp buff once a day, but I'm assuming you want to level for hours straight).

Kind of a funny guide here, much wow: http://www.ffxivguild.com/ffxiv-gene...powerleveling/