Dito to the last couple posts. I would also consider that in fringe areas the Samsung data signals are very weak compared to Motorola. Secondly, Sammy usually design rounded back side which does not hold real well in the car or other unstable environments. Our X is a good example as it rests on the corners and doesn't slide around so easy. Next body material. Our X seems so secure in the hand. Samsung,at least the Nexus was so slippery you would be forced to get a cover. I used my upgrade in January's to get the Nexus all of the above issues forced me to return it and gladly payed the $30 fee to learn that lesson.
Razr HD seems like the best option coming. Until then I've enjoyed new life in my X via root & Beanstown's Galnet MIUI ics.