I have no stats on UTG since he is new to table and I have never seen him before. I do know that he has raised the last 4 times straight and folded to a previous reraise of mine (w/ AA). MP2 is 33.8/14.08/0.6 after 71 hands. Good line?

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

SB ($1016.30)
BB ($322.75)
UTG ($225.32)
UTG+1 ($530)
UTG+2 ($676.80)
MP1 ($145)
MP2 ($501.50)
Hero ($683.35)
CO ($442)
Button ($722)

Preflop: Hero is MP3 with 3, 3. SB posts a blind of $3.
UTG raises to $12, 3 folds, MP2 calls $12, Hero raises to $48, 4 folds, UTG folds, MP2 calls $36.

Flop: ($117) 3, Q, 8 (2 players)
MP2 checks, Hero bets $30, MP2 calls $30.

Turn: ($177) K (2 players)
MP2 checks, Hero bets $125, MP2 calls $125.

River: ($427) K
Hero bets all-in, Villain calls $298.50
Final Pot: $1021

Results in white below:
MP2 has Jd Kd (three of a kind, kings).
Hero has 3h 3d (full house, threes full of kings).
Outcome: Hero wins $1021.