My previous phone was the Droid X as well. In fact, it's still sitting on my desk, factory reset, as I'm going to give it to my mom (and teach her to use it) when she visits soon.
I loved it, but I have zero regrets going from that to the Nexus. For one thing, I've been lucky enough not to experience the problems some are having - my signal is functionally the same as it was on the X. I can always make/receive calls when I want to, except the exact same stretch of highway where I always lost signal with the X too. I don't obsess over dbm because my phone does what I want it to.
I unlocked and rooted the first day, tried out a couple of ROMs until I found AOKP, and I'm still on that because I think it's excellent, especially with leankernel.
Honestly, I bought the Nexus for the openness, but as far as build quality goes - I've dropped it naked from chest height on ceramic tile without a scratch, and I dropped it a couple more times from waist height with one of the tpu cases I bought on it, still no harm done. I do envy the battery life of the Maxx, but so do all other smartphone owners, really. I have the 2100 mAh battery, and I never have to charge it more than the usual every-night routine.
And while I am expecting the Nexus to see updates for a long time, even if it doesn't, with an unlocked bootloader, I can find them elsewhere.
I'm not saying the Razr is a bad phone (and I will never understand the flame wars between owners of different phones), I'm just saying that the Nexus was the phone for me.