Wow. I'd say more choices. Everyone has different needs. I'll use me and my dad as an example.
I don't call a large number of people on a regular basis. I need a lower number of anytime minutes. But....I text message a lot. If I could get a plan that included low anytime minutes and unlimited texting for a fair price, I'd be set.
My dad is slightly more popular than me. Any plan where I get the top three of five numbers called for free regardless of carrier, would be awesome. He doesn't text message at all, so he wouldn't need that.