>>718534932
Crit chance is almost always the wrong choice because seldom few games actually let you stack crit additively and with such easy, large quantities like that. A "20% crit chance" ring is probably going to be like, +20% of your base chance of 1% which means a total of 0.2% additional crit.
If your damage is >100, attack speed is best, otherwise damage is better. Additionally if you have abilities that shoot multiple projectiles, damage is better if it applies to each one. You are probably better off going for damage most of the time