Nieves. Add Andersson.
Two years ago, I was actually hoping Christian Thomas might turn out to be the next Joey Mullen. (He's much more like like the Mullens than his dad.) But he regressed in his last year in juniors, where scorers with NHL potential nearly always dominate. More than pure talent, you need to look for consistent progress when evaluating a prospect, and I Thomas has stalled a bit.
Nieves has had a promising start in college despite his young age. I see good upside in him. I like Hrivik too, but he's older.