I usually upgrade my smartphone around the 1-year mark, and I'm close to that now. I've looked at the different Android phones available, and I still think my current HTC One is the best of all of them. I really like the aluminum body construction as it reminds me of the high-quality build of the Apple products. The only other phone I would consider at this time is the Google Nexus 5, since it has similar specs to HTC One and actually exceed them a bit in processor speed, wireless charging, etc.
So my advice: Get the HTC One over the Samsung smartphone, or wait as other have stated for the next incarnation of the HTC One (M8).