I was torn with the decision too (coming from a Thunderbolt), but ultimately I went with the Razr Maxx HD. I am confident enough that with fastboot and kexec (once a Razr HD hack is available), that needing an officially unlocked bootloader is not required to satisfy my power-user needs.
Loving the Maxx thus far. Rooted it within the first 10-minutes of powering it up. It just "feels" like a good phone. Great build quality (doesn't feel cheap/plasticy like Samsung phones) and the weight isn't much different than my T-Bolt. And I am really looking forward to experiencing what multi-day battery life feels like. I rocked the Rezound battery in my Thunderbolt, and for the phone got good battery life, but I would never go overnight without charging since it would be at 20-30 by the time I would head to bed.
Looking forward to what the dev community has in store for this phone!