I had an instrinct s30 before my hero. I will never ever ever ever ever go back.
You know how with the instinct you constantly find yourself saying, "This is almost a good phone, if only it did this.. or that..." That's the hero. It does "this" and "that".
Texting is better on the hero than it is on the instinct, it's faster, more capable, and overall a very satisfying phone coming off the instinct.
The only thing that wasn't as seemingly good at first was the voice dialer. But I have since learned just to not use it, and instead use the magnifying glass button to pull up google voice commands... where you can either do a google search or tell it to dial a number, or etc. Works great.
I've played with the moment, and didn't like it. Screen's not as good as the hero, I miss Sense (it really adds polish), and the keyboard just wasn't enough benefit to me to justify the incredible bulkiness.
Hero all the way.