I had headers installed on my '74 F100 2WD and went through the same questions you are all posting. My exhaust guy (if you're around north Georgia let me know and I'll be happy to recommend him) suggested a couple of brands simply because of the thicker flanges and better designed tubes (for clearances). Hooker and Flo-Tech were his top suggestions (and he sells neither). He told me to purchase them and he installed them along with the Flowmasters and exhaust. Both of them have a full 1/4" thick flange.

Because he installed them, if my starter ever fails, he will replace it free.
I figured you couldn't beat that kind of deal.
Oh, one more thing, ceramic coated is not that much more..about $80 to $100..and is better long-term as well as helps increase performance by increasing exhaust temps.
Hope it helps.