Godfather,
You never know if you made the right decision in this industry until the day you retire. I was hired to SWA in 2000 and reading one of the SWA guys posts it looks like I would probably be a Captain right now if I had taken the class date. Instead I went to DAL. While he was making $100K a year at SWA I was on furlough. That being said no one has an aviation crystal ball that I know of. After July of 2001 every swinging richard in aviation wanted to be a Delta pilot due to our contract, now we are the goat. Go with what fits you best and don't look back and play the what if game. It will only give you an ulcer.