POST THE SPEW HANDS!!!! I spew.

In the AQ hand I'd bet $6 on the river as played.

That said, I like a bigger pre-flop raise because we're out of position. CO really should have called you with pretty much his entire range. because it's only 3bbs and he has position.
$2 pre
$3.5 flop.
$10 turn
Shove river.

After a single limper, I like to isolate for 5bbs. You want to play a big pot.