Biggest avantage for TSA is a better contract. The cancellation pay is huge. Talk to any of these RP guys about 85 hour months that detiorate to guarantee because of cancellations and reschedules. I've worked at both (RP as an FA and TSA as an FO) and both are about the same in terms of the way the company treats you, but TSA has a better contract. On top of that you have the situation between the management at Republic and the Teamsters which doesn't look to get any better for a while. The situation at TSA has improved a lot over the last year and keeps getting better due to changes in management.