Features are nice, but a solid, reliable and smooth UI is more important.
TouchWiz has a lot if features, but the interface is VERY clunky. Tons of animation stutter, it's horrendous.
The HTC One is by far the smoothest Android device I've ever used (except Nexus), I just wish HTC would spend more on advertising to compete with Samsung better and reclaim the Android crown.
I think the software on the Moto will be just fine, provided they stay away from the 'Power Saving Script' that plagued the RAZR MAXX HD...which essentially handicapped the processor....always choosing power savings over performance.
To me, user experience is paramount.
Things like a smooth interface, loud sound, front speakers, long battery life, great reception, durability, good camera, large or expandable memory, quality DAC, are all important.
The more of these foundational, functional boxes a manufacturer can check, the better.