To Strange's credit, he keeps his tone and words relatively level. However, he can't hide the brief scowl of annoyance that flashes over his face as Lavellan mentions Solas. Ugh. That guy. They've only had a few conversations but each conversation ended with Strange getting the distinct impression that Solas was an ass.

Still, if Lavellan liked him, he could keep the commentary relatively positive...he hoped. "We've met. I had no idea Solas's magic focused on dreams. Tell me, what else can he do?"

This is solely for knowledge purposes, not Strange comparing the two and deciding that he's better, certainly nothing like that.