It's funny, I actually have no mods for dragons.
The only ones I have is one that makes them more rare (because lets face it, fighting one every other time you travel makes them tedious and annoying, not epic fights) and one that makes them stronger (more health, slightly more damage) so the fights feel bigger, and less OH GREAT ANOTHER FREAKING CLIFF RACER TO KILL IN LESS THAN A MINUTE WHAT A PAIN IN THE ASS.
I find this makes the dragons more like what they should have been, rare random/roaming boss fights, not a common everyday enemy to be killed like nothing.
Well, except for those guarding specific locations those are still there and now just a bit tougher so less of a pushover.