The persona grab has armor. But one is a ground grab and the other is an air grab. If you end up eating the ground one, the damage is just ok (afaik). The anti air ice one is the strong one.I honestly don't know why you don't just spam the blue grab guy non stop. You can't jump over it, guard it, roll it, attack it, it is free damage once it is used. And if I FA'd then that would just be more free damage from a counter hit.
I wouldn't call that a struggle.
It was a complete stomp every single round. But this time I knew to expect nothing so it's cool.
Edit: I don't know what other cues there are to guess which one is going to happen. The only thing I know is that ground grab has a longer start up. So you can just down back for a short bit, then air dash forward. I don't think the mixup is that strong since you'll get a feel for the timing. It's sort of like how players OS block Noel's drives.