Nexus Prime on VZW would be epic. Best phone on the best carrier. I was skeptical about it happening, because VZW is so anal about controlling phone content/user experience. There was a time where I wondered if the reason Verizon wasn't getting a Nexus phone was something like this:
Google: "We would love for Verizon to carry the next Nexus Phone."
Verizon: "So would we."
Google: "Well what do we need to do to make it happen."
Verizon: "These apps are required to be preloaded, un-removable, and always run in the background." (Huge List of Bloatware)
Google: "Wait, I don't think you understand what the Nexus line is, let me expl..."
Verizon: "Also, we will review all updates prior to going out to consumers."
Google: "Well Nexus phones by definition get the latest and greatest first."
Verizon: "Well we will be the final word on that. Oh, there is also one more thing."
Google: "What is it?"
Verizon: "Since it is a "Nexus", and not a "Droid", we are going to need you to make Bing the default browser."