So a while ago I made this chart with the differences between My Little Pony types in MY OPINION. I get a lot of comments on it, and a lot of them ask the same thing. I've stopped answering comments on it, so here are the most frequently asked questions.
Q. I have an Alicorn OC, is it overpowered?
A. It doesn't matter, if you want an Alicorn OC have an Alicorn OC, that's the beauty of artwork, you can have whatever character you want and let your imagination run wild.
Q. My Alicorn OC isn't overpowered because it can't do magic or fly.
A. That isn't a question (But I get this a lot). If you want a pretty OC with wings and a horn, go for it. Not having the powers that come with an Alicorn doesn't alleviate it's *specialness* though.
Q. Pegasus aren't weaker than other ponies, Rainbow Dash is so strong!
A. Also not a question...this is turning into a statements and answers. Anyway, this is just my opinion, if you disagree just make your own chart.
Q. Alicorn's aren't godlike, they have flaws.
A. Again, this is my opinion, I think of Celestia and Luna as godlike rulers. Of course I made this before Cadence came into the show. It's still pretty clear that canon Alicorn's all have incredibly powerful magic, such as controlling the sun, the moon and love. They also have a *special* factor since they're rare in MLP canon.
Q. I have an earth pony/pegasus/unicorn OC.
In conclusion, this is just my opinion on things, don't take it so seriously. If you want an Alicorn OC then go for it.