Ice Fang is weaker and has slightly less accuracy (65/95), but it has a 10% chance for each effect of either freezing the enemy or causing them to flinch. Meanwhile, Ice Spinner is stronger and has slightly more accuracy (80/100), and it always removes the effect of terrain, but the effect specifically only works for terrain, and using it may be detrimental to your side as well if you have a terrain set up. Thoughts between these two moves?
For further context, I am running a set of Earthquake and Body Press as STAB moves for my Great Tusk and a Steel-typed Tera Blast to give them a type that resists all of the types that they are normally weak against except for the Water type.