Anywho, didn’t know you were a fan of Sunny, Cosmas! That’s honestly pretty fascinating to learn about, since I have seen you comment to several different images in the past but I never gotten around to learning more about you as a user. Always nice to see more Sunny supporters on this site, in all honesty.
Also, your point about her being the heart and soul of the group is why I personally think she makes for such an amazing main character. After all, if you have a solid core character with a rich personality that you can relate to, then it makes that character one that could understandably be the central focus of a compelling story. Sunny has a very compelling personality, and her goals and hardships are both very relatable. In this way, she becomes a very natural leader, though at the same time she never feels like the same kind of leader that Twilight was-after all, Twilight always lead by intelligence, whereas Sunny leads by compassion and friendship (which, in a way, makes her a bit more like Fluttershy than Twilight if you think of it). I cannot wait to see her further develop as a character both in the upcoming special and in the series this fall. We are going to get a whole lot more of her, and I will be here to see every second of it.
And I agree with you on the ‘I hope that G5 doesn’t forget how much potential she has’. Frankly, the trailers for the special give me hope in that regard, because it does look like they are making use of that inherent potential that she has, putting her in situations that will best show her own inherent leadership skills. It also further cements her as the central character of the series, something that Tell your Tale didn’t do enough of. Hopefully this theme of leadership through kindness continues with the series, as I believe they can do a lot of neat things with it, things that have never been seriously attempted in MLP before.