The avocado would fit in my ass a lot more easily. And when I'm done, it would make an impressive amount of guacamole.
Apple. I can make pies and sauce with the leftovers, and then plant the seeds to grow my own 20lb apples. 20lb avocado would go to waste unless I had a large Mexican family voluntarily living in my basement
That avocado would come with a 8 pound pitt though.