Just pointing that out... You meant to say "surf", right?
Also, ice beam has this neat property of not dropping your spa 2 levels. While your point about draco meteor is still valid, it's worth noting.
Also, lando-T dies to ice beam, which is relevant because they often run u-turn. Incidentally, lando-I and Gliscor also die to ice beam.
*edit*
missed the last part of your post. Right about non calm-mind varients, but Gliscor and Lando-T both can live a surf (not well though).
252 SpA Latias Surf vs. 252 HP / 4 SpD Landorus-T: 210-248 (54.9 - 64.9%) -- guaranteed 2HKO after Leftovers recovery