Easy Best / Obvious Check - Or Somewhere In-Between??

[Utah]

My river play seems to be giving me fits. I keep finding reasons not to value bet but then find out I should have...

What do I do here on the river:

2 early limpers
1 mid limper (strong tricky aggressive who knows me)

I raise with A [img]/forums/images/icons/heart.gif[/img] Q [img]/forums/images/icons/heart.gif[/img]

Blinds and everyone calls

K [img]/forums/images/icons/diamond.gif[/img] J [img]/forums/images/icons/diamond.gif[/img] 3 [img]/forums/images/icons/club.gif[/img]

Checked around

turn 10 [img]/forums/images/icons/heart.gif[/img]
Giving me the nut straight

Strong player bets, I raise, sb calls, SP reraises, I reraise. sb calls all the way.

Hard to read the strong player. I am guessing the same hand or a pair + flush draw and is trying to get me to laydown. Just don't know

I am sure my hand is obvious to everyone and their brother

River K [img]/forums/images/icons/club.gif[/img]

Checked around

Thinking SP only calls with a hand that beats me (which of course means he will raise). Have no read on SB so I just don't know

I take it down. sb has two weak pair. SP mucks.

Should I have bet the river? If so, is it an easy play or a thin value bet?