Out and back personally. I imagine they hold better maintenance wise and Mystic & Prowler seem to be overall better received with audiences. I love Thunderhead more than most my family but would like to see something different being so relatively close.
This is of course assuming we will ever see another woodie at the park in the foreseeable future, I wouldn’t be so sure. I’m a fan of wooden coasters but times are different now.
If we got a GCI, I would love to see a twister. It would fit nicely where Dinosaurs Alive currently is. I have been on Mystic Timbers as well as Thunderhead. I personally prefer Thunderhead, and the twister layout for that matter. Both are great (and I would take either), but I would overall prefer the twister.