Is this even a thread? ABSOLUTELY open AK, suited or not UTG.
Here's why.
There are 3 hand combos that have you massively beat. AA have 90%
equity against you.
There are 3 hand combos that are significantly ahead. KK has 66% equity against you.
There are 66 combos, assuming players will call with 22+ that have slight equity against you. 55%.
There are 75 combos where you are a significant favorite, approximately if you consider people will call with A5-9suited in position, plus AQ, AJ, AT, KQ, KJ, KTsuited. 70% in your favorite. Plus there's another 20 combos of QJ, and QTs that lose to you 60% in your favor. Throw in maybe another 16 combos of lower suited connectors. That's over 100 hand combinations that are losing to AK at least 2/3rds of the time.
So, with 172 hand combos of what people will reasonably call with
100 lose 2/3rds of the time or more.
66 lose a little pinch less than half the time.
3 have you beat 2/3rds of the time.
And a whopping 3 combos win 90%.
In other words:
AK will be the best hand by the river apprx. 2/3rds of the time against an average opponents calling range.