You would think that something as large as a dragon would be easy to keep in sight. When fighting the dratted things I keep losing sight of them. I'm spinning wildly in circles trying to find it when a blast of dragon fire come seemingly out of nowhere. I can't fight it if I can't even find it. I'm using IHUD so there isn't even that clue as to direction. How do you keep those things in sight?

With close contact, they move too fast to do so well. The best way for me (being a mage) is to summon a minion to distract it and then gain some distance. With distance it's easier to keep track of.