Why are people saying the Titan 2 has weaker build quality? From the previews I've read, it seems on par if not better than the first Titan. It is also a metal unibody, but has the usual HTC rubber coating on the metal as opposed to just raw metal. The 720p video is also on a different playing field from the samples I've seen. THe photo samples also seem to have better dark shots. It does have a much bigger sensor and lens on the back after all.
Other than the camera and maybe the choice in build, and whether you want LTE or not, yeah the two Titans are like brothers.
Correct me if I'm wrong