If the glue joint is good then either should be strong -- but your #2 should be more forgiving strength-wise (and less so weight-wise), as well as putting the seam between wood and wood where it's less visible.
I'd shape the TE piece roughly to shape, then install it, then sand it and the ribs together to get a nice match. Perhaps "sand gently" would be a better way to say it. Then put on the TE sheeting.