I think there is truth in that, it's just some people make choices based on form factor as well as actual phone capabilities. The hero is the equivalent of the prettier sister or of a pair twins. She presents herself slightly better than the other, although underneath, she's just a slight bit less. The Moment is the other sister who's a bit bigger, but she's not quite up to snuff in the beauty department. But with some time and patience, she can be just as good as the other sister.
That's my metaphor for the choice, until we get a more up to date Android device on Sprint. Lol.
My metaphor of choice would be...
The Hero hit puberty early and was allowed to date at age 1.5. She was envied because she had a youthful beauty that matched her inside very well. Miss Hero got all the attention and was ridden hard (to the max) right from the start by Sense UI.
Later on, when the chubbier sister (Moment) was allowed to date at 1.5, she was completely under-utilized and made fun of. The underutilization made it look like she was on par with Hero on the inside, but nastier on the outside.
At this time, most people chose to lust after Hero because of her youthful beauty... not expecting the impending ugly duckling scenario.
Fast forward to adulthood.
At age 2.1, Hero noticed that she had obviously hit her peak at 1.5 and spent her best years with sense UI. She had been ridden hard and was now sub-par since she had never grown on the inside beyond where she was at age 1.5. No longer was she the bell of the ball, her best years were behind her...
Now, Ms. Moment came into the lime light, fully utilized and beautifully integrated. This is her time to shine. Her voluptuous shell matched with the beauty on the inside made her the envy of everyone. She is perfectly suited for age 2.1 and is making the most of it! Of course, this will all be forgotten when Hero's cousin, the supersonic, comes into the picture.
Edit: This is also assuming that Uncle Samsung doesn't abuse the Moment and leave her ruined at age 2.1 thus dirtying her reputation forever... this is something that I believe is a distinct possibility.