I have droid 1 and just got droid x from motorola experience. In my opinion go with Moto as their hardware arent fragile to break like Htc. I had htc evo it broke with one shot in floor. I had droid 1 from late July 2010 to August 2011 it took a while with thousand of time i drop it. I play soccer and bike ride and fall very frequently i can tell u it took a year for my droid 1 to break on screen base on the abused.
If you dont mind Sense ui and the cheap display Htc puts on their 4.3 devices go with Htc thunderbolt.
Now i have droid x it isnt bad at all is as durable as my droid 1 was.
English is hard