These two ice types are very similar. Stats: 71 HP, 95 attack, 85 defense, 110 sp. attack, 95 sp. defense, 79 speed, 535 base stat total. Stats: 95 HP, 110 attack, 80 defense, 70 sp. attack, 80 sp. defense, 50 speed, 485 base stat total.
For one, they are both ice types (sorta the obvious...