thanks all
As I said my main concern really is not missing my connection and not losing any baggage on route.
I have also heard good things about Qatar airways but a search on pprune found a thread called "Qatar Airways customer service", which was less than encouraging saying the staff were extremely rude (i can deal with that), but more importantly that there flights are always delayed and that transfers in Doha are a nightmare (more of a problem).
Who to believe....
I think it seems that I am more likely to make it on time with Swiss, if not so comfortably
thanks again