I am new to the points game. I have recently received the CSR and achieved the minimum spend. Considering the following as my next card and would love your thoughts.

AMEX SPG - 25k point bonus after 3k spend $95 fee waived first year.
Southwest RR Premier - 40k point bonus after 1k spend $99 fee not waived
AAdvantage Plat Select - 50k bonus after 3k spend $95 fee waived

Thanks for your feedback. If it matters, I am in South Carolina and usually fly out of CLT.