If you use friendstream and peeps, then use the HTC one.
If you root and want all the other fb stuff use the official app and delete the HTC facebook app BUT NOT FRIENDSTREAM!!
Either way both are junk.
All I want is to sync Facebook to my current contacts and not have all of my Facebook Contacts added to my Phone Book(when you dial a number you see all your Facebook Contacts)
There is a Bug in there!