Which is the real Pinkie?

I loved the third episode of season 3! Too Many Pinkie Pies was great! But it made me feel weird to see her get confused over who was the real Pinkie. It made me wonder, whether they're ALL the real Pinkie deep down. And would that be how she is now, or how she would have been if she'd lived as Pinkamena?

Ooooh, deep. xD

TLDR; Pinkie Pie <3

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MLP (c) Hasbro
Thanks to all of the vector makers!
Ponyville background - by Austiniousi - [link]
Mane 6 - by exe2001 - [link]
Pinkie vector - by Takua770 - [link]
Pinkamena vector - by Durpy - [link]