Hey, I'm talking about PG stuff here, not stuff that would brand him a dirty dog. I'm sure that he never told Moana that she was the one, like some have in the past. It is unjustified to assume that he behaved dishonorably toward Moana. Moana was in the same atmosphere and subject to the same phenomenon. I'm not at all convinced that Travis is who she would normally pick. Sarah, I believe would normally pick T.
However, I don't think Travis would normally pick Sarah. I think we have evidence of that - he hasn't already. Sarah's are easy to find, there is nothing even close to special about her. She is not exceptional in any way. I think we have evidence of that, too - many posters here have commented on how much she reminds them of themselves.
As for either picking Moana, or even Susan, 'normally' - it's my opinion he knows very few Moana types, if any, and he knows darned well he'd never have a decent shot at a Susan (except maybe in a photo in a magazine).
I do agree with those who theorize that the opinons of Travis's female relatives will be the dealbreaker. If they form a negative impression of California Girl Moana (I figure there is no way they won't like Sarah) that will make his decision for him.