I’d go for the cove. A lot of it’s twisty, turny, bermy, rumpy, pumpy stuff, and I reckon that’s more fun on a play bike. Certainly the Blue anyway. can you wind the forks down?
The red’s a bit more mixed, with more what you might think of as normal xc trails, but also more serious twisty, turny, bermy, rumpy, pumpy stuff.
Bar some rooty steppy stuff and braking bumps on the red, I had more fun on a mtb than I have for a long time on a 26 rigid SS. Most of it’s very smooth indeed, and none of the hills are long enough that stomping up them gets tiresome.