I eat trout and steelhead skin, but not salmon skin. Perch, walleye, grouper and sea bass skin yes; tuna, opah and cod skin no.
I love chicken skin if it's crispy, but occasionally will bypass it for health concerns (and right now I'm pescatorian in any event). Pork cracklings are the bomb. Skins of other critters - not my thing.
Cucumbers, tomatoes, peaches, apples, grapes, white potatoes, summer squash, peppers - all yes. Sweet potatoes no (and I really don't much care for sweet potatoes, but will eat them for health reasons only).
Watermelon no, but I do like to eat much further into the rind than most people do.
If you were to ask me what I'd choose for my last meal, I might pick fried chicken with skin on (preferring Popeyes' spicy version to all others) with steak-fried potatoes (skins on, natch) and watermelon for dessert. Accompanied by Chateau Lafite, of course.