If I were choosing between the two of them, I'd pick Taylorsville (even though I grew up Crappie fishing on Herrington).
I'd launch at Settler's Trace Marina.
I'd fish around any blowdowns I could find, starting shallow & close to the trunk and work my way down to the 15-18' depths. I'd be casting a 1/16oz weedless jighead with a blu/char tube (for deep fish) and a pink marabou 1/16oz Roadrunner for fish suspended above the tree top limbs.
In other words ... I'd fish the same way I normally fish, Spring to Fall