(What is the best gig that you ever played/performed at?)

You meant to ask: What’s the best gig that you’ve ever played/performed?

(What is the best gig you have ever been to?)

You meant to ask: What’s the best gig you’ve ever attended?

Please re-take some high school writing courses and learn the “don’t end a sentence with a preposition” rule. It’s not hard to follow.

And don’t declare yourself an expert in “something” (For a self-declared Anglophile), and then declare you’re ignorant to that particular “something” (I was semi-shocked that I was not aware) that was common knowledge if you were actually an expert in that “something.”

Basically, learn how to write.