TOD
I like almonds, but I get bored with them.  (In things like trail mixes, they're just "filler" for me.)
I grew up in a plain vanilla household where, for the most part, nuts meant peanuts.  Always liked them and everything derived from them.  I think we had walnuts in the occasional Waldorf Salad, and I didn't like those then. I kind of like them now, but they're not a favorite by any means.  I thought pecans were kind of icky too, till the day I had my first pecan pie, and we can thank the Cheesecake Factory on Beverly Drive for that little epiphany.
At some point I discovered cashews, which immediately became my favorite of the non-peanut nuts.  As I got introduced to those cans of "mixed nuts" I found I also really liked Brazil nuts and hazelnuts, which I started buying in the shell to crack open and eat in bulk.  When I discovered pistachios, I also used to happily eat those in bulk.  A bag of those would be a meal.
I don't remember how or where I first tasted Macadamias, but they've always been a real treat.