Both opponents are pretty loose. What line do you take?

Party Poker No-Limit Hold'em, $ BB (10 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

CO ($39.15)
Button ($109.81)
SB ($110.85)
BB ($31.15)
UTG ($58)
UTG+1 ($53)
UTG+2 ($61.41)
Hero ($114.69)
MP2 ($107.30)
MP3 ($282.50)

Preflop: Hero is MP1 with K, A. SB posts a blind of $0.50.
UTG calls $1, 1 fold, UTG+2 calls $1, Hero raises to $5, 3 folds, Button calls $5, 2 folds, UTG calls $4, UTG+2 calls $4.

Flop: ($21.50) 4, A, 7 (4 players)
UTG checks, UTG+2 checks, Hero bets $15, Button calls $15, UTG calls $15, UTG+2 folds.

Turn: ($66.50) Q (3 players)
UTG checks, Hero bets $50, Button calls $50, UTG calls $38 (All-In).

River: ($204.50) J (3 players, 1 all-in)
Hero calls $44.69 (All-In), Button calls $39.81 (All-In).

Final Pot: $289