I'm not sure I know anything about #1 or #3, although I've heard mostly positive things about Qatar Airways, and I've had pleasant experiences flying with them.

2) As an American can I expect any different treatment from the other ex-pats that live there?

I haven't noticed any different treatment from other "Western expats" since moving here over 15 months ago. If you are talking about all expats then I'll say that I have noticed some different treatment. You may find that government processes in regard to the medical exams necessary for visa, for example, are more streamlined for Western expats, although it could also be a function of what employer you work for. I'm not saying that I approve of it, but you may observe such class distinctions at some point in the process.

This is probably not the kind of "different treatment" that you were speaking of though.

For more slice of life stories from an American expat, feel free to read my blog about life in Qatar.

http://www.xanga.com/BBetz