[rikz]

Fold all 3 out of position to the preflop raiser.

Short of that, I'd say:

Hand 1: Raise to $50, fold to a push from either player unless the preflop raiser pushes and the UTG calls. Then you might as well play a 3-way huge pot with your draw. The problem here is that UTG either has a set/two-pair or he's semi-bluffing with a higher draw. He might even have JT, in which case you only have flush outs.

Hand 2: Bet $15 and hope to take it down. If you get a caller and checked to you on the turn, then take a free card. Bad luck, though, if you get a chaser with a higher flush draw.

Hand 3: Bet $30 and be willing to go all the way with it. Here's your hand vs a AA or AQ

Holdem Hi: 990 enumerated boards containing 6s 3s Qh
cards win %win lose %lose tie %tie EV
Qs Js 493 49.80 497 50.20 0 0.00 0.498
Ad Ah 497 50.20 493 49.80 0 0.00 0.502

And

Holdem Hi: 990 enumerated boards containing 6s 3s Qh
cards win %win lose %lose tie %tie EV
Qs Js 453 45.76 525 53.03 12 1.21 0.464
Qc Ad 525 53.03 453 45.76 12 1.21 0.536

You're a little worse off if villain has a single big spade.

Your also way behind a set, if MP has 66 or 33.

Holdem Hi: 990 enumerated boards containing 6s 3s Qh
cards win %win lose %lose tie %tie EV
Qs Js 298 30.10 692 69.90 0 0.00 0.301
3c 3d 692 69.90 298 30.10 0 0.00 0.699

A big pot 3-way might be AsAx, a set of 6s and you:

cards win %win lose %lose tie %tie EV
Qs Js 224 24.81 679 75.19 0 0.00 0.248
3d 3h 583 64.56 320 35.44 0 0.00 0.646
As Ac 96 10.63 807 89.37 0 0.00 0.106

Here you have a 3:1 shot.