UTG villain is 17-13 loser over 1k sample. Range varies by position, but still 14-9 UTG. 80% flop c-bet. AK/AQ/AJ/pairs 99-AA/KQs likely range, especially after the flop bet.

Other players in the pot are a 50-4 fish who could do anything, and a 15-9 winning Tag who will be folding most of his range.
Thoughts on raise sizing, i guess I could flat, but any J, Q, or heart will make me unhappy...

Full Tilt No-Limit Hold'em, $1.00 BB (8 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

SB ($129)
BB ($101)
UTG ($149.65)
UTG+1 ($106.80)
Hero (MP1) ($103.65)
MP2 ($200)
CO ($112.65)
Button ($145.20)

Preflop: Hero is MP1 with 10, 10
UTG raises to $3.50, 1 fold, Hero calls $3.50, MP2 calls $3.50, 2 folds, SB calls $3, 1 fold

Flop: ($15) A, 9, 10 (4 players)
SB checks, UTG bets $11, Hero raises to ?,