Man, what a pain to endure. Hope you get settled into something soon and can finally put this behind you.
I got the EU bug a couple months ago and have stayed on ICZen ever since. I did originally get it after using mostly AOKP & ICZen builds, but (as Woodrube mentioned) this is a global ICS issue and not specific to any one rom.
There's always the downgrading option, but that's just not gonna happen for me. I'm way too smitten with ICS performance and ICS specific apps on this "old" phone. Once you've been bitten by the EU bug, it's really a matter of being smart about data backups. If it happens again, you already know the drill.