Data drops are a regular thing with the bionic, I'm not sure if it is or isn't with the other phones. I got my Bionic off contract and love it, but I would still take a RAZR or Rezound as a replacement in a heartbeat lol.
I would probably go with the Rezound over the RAZR, simply due to the ability to unlock the bootloader. With an unlocked bootloader, you'll have an easier time flashing Roms and will probably have more Roms to choose from because unlocked bootloaders are much easier for the devs to work with.
Now with all that being said if you don't have any interest in flashing custom Roms, then I would do as others have said and try both out in a Verizon store for a few minutes to see which one you prefer.