I'd honestly be happy with nothing, and that's what I hope I get, since it'd save us money to pay bills. I've got a roof over my head, food (most of the time) and water, caring parents and family members, and friends. I'm content with that for sure.
However, I know my parents/grandparents will want to get me something, which is not good. Don't get me wrong - I'm really really grateful they'd be willing to get me anything, but it just doesn't make sense to get anything when you can barely afford food and you've bills to pay, right? xD I guess money's not always what's important, though... I just wish they'd be more realistic sometimes.
Anyways, if I had to get something (one year my parents literally forced me to make a list, which is why I say "had"), it'd be the 15" Giant Tomy Arceus Plush. It's a bit overpriced for something as silly as a plush, though, but it just looks so amazing.