Stock. Last phone, a Fascinate, was rooted. When 2.3 was pushed, the phone locked up and never worked again so I want to avoid a repeat. Love this phone. Works just fine as is.
I rooted after about 5 days. Though, stock ICS is great as is. I am just a tinkerer and love to mod my electronic devices. Running AOKP and Franco kernel now. So fast and smooth, great battery life. Used to run CND, but I think I prefer AOKP.
Stock and probably stick with it for a bit. I love this phone as is. No problems whatsoever. I'm sure the bug will hit me and I'll make the leap. But for now, I am very pleased with this phone.
I am going to root it but not before I give it the once over. The guy at the store tried to talk me into buying a RAZR so I want to see what the normal user would experience so I could tell my friend, who are waiting to upgrade.
I've had mine for probably a little over a month now and I'm still stock and unrooted but one of these days I'm at least going to root and look into roming. Still not sure if I want to bypass stock, that was one of the main reasons I got a nexus; no more damn motoblur or any crap like that polluting my Android device!