Going after other targets is intended and added to create possibility of interesting battles. I like the concept and it works out a lot of the time. The problems mostly come when the random stuff they attack doesn't get destroyed like it should :/

As for their level of intelligence, I think it's asking a lot for even better AI, considering the variables involved in an open world where the battle can be shifted anywhere and everywhere.

I'm mostly speaking of fighting a dragon, and then having it suddenly go ADD on something else that hasn't even hurt it yet, nevermind that I've been pelting it with arrows until its face turns red. Or attacking my horse/follower 100% of the time while they steadily chip away at it with tiny damage, while I am breaking its ribs in.

Intelligence can simply be adjusted using already available variables that are likely there, such as bombing run frequency, circling, landing frequency, target priorty etc.

Use this http://www.skyrimnexus.com/downloads/file.php?id=1059 for now. Had a few master level fights vs a frost dragon on ADEPT so far. Elder dragons go from "I got this" to "holy[censored]wtfdidigetmyselfinto"

These posts only pop up because the sub level 20 dragons are push overs, and even the blood dragons in the 20's are pretty easy. Its at 30+ that dragons become truly beastly, hell i'm a nord and i fear frost dragons in any area i don't have a nice big rock or pillar to hug.

I still remember when I first met a Elder Dragon; I thought it would be just as easy as the other ones, so, I proceeded to send a Ice Storm towards it (Which did a good amount of damage to normal fire dragons), yet, it was all but a small fraction of his health that depleted. So, I said to myself, ok, I'll just chunk some potions and stagger his ass in the progress. Sadly, I felt his fiery wrath; which nearly killed my character.

I immediately paused the game, and thought of strategies to flee from this new terror. I ended up chunking some illusion based potions, and fled the scene with my three worded Whirlwind sprint Thu'um. BUT, where ever I went, he stomped behind me, with a fiery breath, I died. Finally, I managed to hide between a few pillars(Just before you enter a dungeon). Horrified, I saw him walking back and forth. I decided to take the oppertunity to strike him, as I have cover protection, and spam some ice spells on him. At the end, I ninjad his ass, and I felt like a [censored] class-a herro. As my ego filtered out all the covardice scenarios.

I met one at Labyrinthian + 3 Frost Trolls... They didn't last long.
*playing on master*
*impact is so op*

I look forward to meeting 2 at once, only then will that be a challenge for me...