From what I saw, Judgement Ring of Casting seems better than HA Ring of Caster. Spell speed is extremely poor for Summoner and you can always get accuracy by getting the Sold 110 belt.

BiS with both 110 Rings

BiS with Judgement Ring of Casting

I don't main Summoner but so i could be wrong but...
2 Intellect + 26 Spell Speed + 3 Det versus 32 Crit
Isn't Det worth about the same than Crit. Spell Speed complete garbage and you need about 12 of it to get 1 Int worth of DPS and Crit is like 3 for 1 Int or 4 for 1 Int? Isn't the choice obvious.