I grew up growing and eating pinkeye purple hulls(PEPH) - and thought they were The Bomb.
After I left home, Dad started growing 'Zipper Cream' cowpeas... easy to shell, but gag! they were tasteless, mushy things, like the chickpeas the yupsters are all agog over these days.
I've been growing several different cowpea varieties over the past few years - Piggott Family Heirloom, Black Cow, Bisbee Black, Franklin Red, KY Red, Maroon-speckled Whippoorwill, Dimpled Brown Crowder, Iron & Clay, and a couple others. I'll probably never plant another PEPH - compared to Piggott & Iron & Clay, they are almost tasteless and much less productive. YMMV... I sent some seeds to my sister (at Wetumpka AL), and she said that the Black Cow variety was struggling there.
Those Iron and Clay peas are small, but Man!... they have the best flavor of any I've grown.
Sandhill Preservation Center in Calamus, Iowa has a huge collection of cowpea varieties... check 'em out, if interested.
Growing three different okra varieties again this year. 'Heavy Hitter', a selection made from Clemson Spineless, is the most productive. 'Granny Franklin'...jury is still out on this one. 'Jing Orange' - I've grown this one for several years... stays tender even when you miss a pod and it gets 10-12 inches long before you spot it at the next picking.