OK, against a good player I would only expect to see 55, A10 or QJ.

AJ+ (o or s) raise PF with a decent stack.
10s+ also raise PF.

A set of 5 or top 2 pairs on the flop, would most likely call you and raise the turn. QJ, shouldn't have call your flop bet, but with pot odds (if he thinks you have a really good hand), he could call only 100 to win an all-in.

So if he is good, it's an easy fold. However, you are in the second level, there's 3 or 4 bad players per table.

A bad player plays AQ, AJ, maybe also KQ. He may bluff and just test you and fold to any raise or just check if you call.

The question is : How good is he?

Since the odds that he is good is close to 50/50, then both options are good. However, why not risk it now and cruise for a bit or start a new tourney if you are not lucky?