Between microchips and Twilight. They're both good.

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The one with Twilight.

Plus, it's been confirmed as the canon ending.

Twilight

Twilight

Twilight's definitely!

Twilight's ending is the canon ending. Not only has it been confirmed with later episodes of this series, but it makes the most sense because of how practical it is

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I don't recall them saying that Twilight's ending was canon, but that made the most logical sense if Sunset had to choose between the three (me and her were thinking the same thing; magic).

However, I decided to pick Micro as my first choice because it was different and he seemed confident. I say that would be my favorite ending as it makes a few clever jokes, is 30s longer than the other two, and because the guy needs more screen time.

Pinkie Pie's if only for this exchange.

Pinkie: Actually, they're the set.
Sunset: You mean they're for the set.
Pinkie: Nope!
Sunset : I feel like you're gonna have to explain this.
[beat]
Pinkie: Nope!