FPS on river?

I like this a lot since I rarely attempt to CR the river in these spots (something I need to improve upon). However if this particular opponent is aggressive enough, I think I'd rather bet in hopes I can get a 3 bet in.

[haakee]

I don't know him so I assume he's some avg 30-60 player which is something like 27/10, 1.4 postflop aggro, and will not raise my river bet.

[DcifrThs]

sure he'll bet when checked to if he has a king...

but by betting you may get to 3 bet.

Barron