I did have an Isonic 111 and I also had a demo of an AB+
Both boards performed nicely. The differences as I remember the SB (2009) took a bit more work to dial in. The AB+ had sharper rails and felt a bit more direct. Also I remember it being quite composed on a down wind run through chop.
If Seabreeze goes back that far, you should be able to find a review I did (around 2009) when I was looking for a mid size slalom board around 110L.
I cant vouch how either would compare when hitting an inanimate object, we dont have many trees growing in our pond.