I like them all haha.

Pickles might be my favorite though.

I love all of these, but if I could only ever live with one it would be capers.

Pickles a close second. My FIL has an amazing recipe for tuna salad: three ripe avocado, three tins of tuna drained and pressed for minimum moisture, three teaspoon mayo and six small pickles finely chopped. (3 tsp mayo is about 1tbsp, but i wrote it like that so you can adjust to size needed 1:1:1:2)

I much prefer lacto-fermented foods over vinegar-pickled.

Peppers, both sweet and hot? Love 'em, especially fire roasted. Sun dried tomatoes? Hell yeah, great to cook with.

Soak something in vinegar though? Yeah, nah, I'm all set, thank you very much.

Artichoke hearts. Straight from the jar with a fork. Yum.

Pimento olives, chopped fine and mashed into cream cheese, spread on pumpernickel (bread, bagel, etc).

Capers can fuck off entirely.