Bronies need not reply. Unless you want to, that's cool.
So basically, what would MLP have to change in the show for you to like it? The premise must stay the same (i.e., a cartoon about colorful ponies using magic and sharing friendship, and appropriate for a kids' network), but examples of changes are different dialog, voice actors, characters, setting, etc. Be creative.
Personally, I'd appreciate a pterodactyl or three.
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For me to even give it a chance would mean everyone stopped sexualising ponies. Even then, I doubt I would.