Is a check-raise on the river more +ev or is valubetting better?

PokerStars No-Limit Hold'em, $0.10 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com



saw flop

SB ($9.10)
BB ($12.90)
UTG ($9.15)
MP ($3.25)
Hero (CO) ($11.75)
Button ($9.95)



Preflop: Hero is CO with J, A
1 fold, MP calls $0.10, Hero raises to $0.50, Button calls $0.50, 2 folds, MP calls $0.40

Flop: ($1.65) A, 4, 7 (3 players)
MP checks, Hero bets $1.20, Button calls $1.20, 1 fold

Turn: ($4.05) A (2 players)
Hero bets $2.70, Button calls $2.70

River: ($9.45) 8 (2 players)