First of all: a staple is not in anyones future ever again thanks to Allegehny-Mohawk. Second of all: why wouldn't you be interested. I will take a SW merger over an AA, Virgin, Spirit, whoever. Unless you are in the top 25% of the JB list you will have nothing but gain even if we are stapled. More money, more time off, better retirement, more base choices. Other than the fact that you might be wearing a different color shirt there is no down side. Do yourself a favor and compare payscales on APC and see where you would fall at your year of pay. Even on the FO side I think you will be just fine.
Thats your opinion chief. Besides the pay scale, I have different opinions and preferences.