every move turn have arguments for it except fold ^^

depends on reads and history you have vs UTG

Preflop ~100bb deep I usually never flat AAxx ip, but i don't say it's a mistake.
And if you have a flatting AAxx range preflop ip, then this AA8s3s is a good candidate as it's a very poor AAxx

Flop

This low dry flop (a little connection, lots of card are turns are making straights in an other way) doesn't smatch very much his UTG opraising range.
It connect a little more your range.

Depends on your reads vs him, but against an aggro/barrelish player I would often call here for induce/value, in plan to call most of turns (and bet sometimes where he check).

He can be cbetting here with complete air (like 4 overcards 9TJQ+like) or value/protection with overpair (QQ+xx). if you raise here he folds all his air obv
Try to let him get his top pair turn and let him value/protect

Raise flop (~10bb i'd say) has arguments too, for value/protection.
not high cards but he allways can have some pair + ovc here (79TJ-like, AKQx ds with x being 2/5/7 etc...), or draws (678x).

Moreover, with some (aggro) history and guessing games, he could be leveling himself a little (he knows that disconnected flop doesn't hit his range, and you could be bluffraising - not totally bluff raising but raising light (TP w over etc...) and call lighter (ovp, 7xxx w OC etc...), maybe calling turn too on blanks and pairing turns

So I'd say
- call vs unread
- raise vs loose (calling/catching) player
- raise vs a player against who you got some aggro history

Think call is best. Should be good most of the time but worse hands won't call a raise.