Topman,
Your salary packages for the big boys aren't close. However this is not about salary, if OX were a reasonably safe organisation your arguments would hold water. Unfortunately, the fact is that only Capt Wooblah makes a creditable argument in favour of joining.
By all means, go to BKK, I think it is a great place for some RnR, including a few beers with the nice approachable chaps of OX. As far as Orient Thai go as an airline; this is a Professional Pilots forum and you have my and others' professional opinions. Opinions based on 2nd hand, but trusted knowledge. Have to agree with FW's sentiments.