First off, a poll: what type of peanut butter do you favor?
Second, do you stick to the classic peanut butter & jelly (jam, etc.), or add other ingredients? I’m working on a sandwich right now that features crunchy peanut butter, apricot preserves, and a middle layer of granola crumbs from a nearly used-up bag. It works, so I’ve discovered a possible use for the bits that are too small to either just munch or use as cereal (bits this small would get soggy in milk, and I don’t like that texture).
Sometimes putting potato chips on it strikes my fancy.
Was surprised when this came up with a couple friends in the UK - that they were unfamiliar with the concept of a PB&J sandwich (one actually thought I meant separate sandwiches of peanut butter and jelly (each by themselves)).
When I make one (which is not very often), it’s usually crunchy peanut butter and strawberry jam, preferably on whole wheat. I can think of a lot of other things that would work on it (your example of granola, or sunflower seeds, for instance), but I don’t generally bother.
I like either smooth or crunchy peanut butter, though I usually buy smooth because I use it to make peanut sauce more often than sandwiches. But coincidentally tonight for the first time in as long as I can remember I had a sandwich- smooth unsweetened, unsalted peanut butter on homemade whole wheat bread, with Constant Comment tea and cream. So good.
I don’t really like peanut butter and jelly. I prefer jelly on toast with butter. I wouldn’t turn down a PB&J, per se, I just wouldn’t make one for myself.