Different Line for AA

[young nut]

I have been trying to work on my river aggression lately and thought this was a good situation to try it. This is not how I normally play AA from EP, but I decided to make a different move on the river. Usually I would just jam the river one more time, but I noticed that the other two players in the hand had high river aggression and avg. total aggression. Good line here on the river?

Party Poker 2/4 Hold'em (10 handed) converter

Preflop: Hero is SB with A[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, UTG+2 calls, <font color="#CC3333">MP1 raises</font>, <font color="#666666">1 fold</font>, MP3 calls, CO calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, UTG+1 calls, UTG+2 folds, <font color="#CC3333">MP1 caps</font>, MP3 calls, CO folds, Hero calls, UTG+1 calls.

Flop: (20 SB) 3[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, UTG+1 calls, MP1 calls, MP3 folds.

Turn: (11.50 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, UTG+1 calls, MP1 calls.

River: (14.50 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">UTG+1 bets</font>, MP1 calls, <font color="#CC3333">Hero raises</font>, UTG+1 folds, MP1 calls.

Final Pot: 19.50 BB