Neither, though I'm a little more likely to wear heels than flip flops. Flip flops are the footwear equivalent of open mouthed chewing. Though it'll be a neat trick getting me in anything other than sandals unless it's winter.
I love heels...for an hour or two!! I have way too many in my closet and I rarely go to functions where I can wear them. But I still manage to have a small heel on all my sandals, I just like the way they look...of course, gotta have heels with cropped jeans. I will actually wear heels with just about anything.. can't help it..just love 'em?!
I never wear heels. I did when I was young, but rarely. I would have broken my neck by now. They really aren't my style. Now that I am old, and really don't care about fashion, I wear boots, clogs, and, even crocs when I am being very lazy. One thing that endeared me to Deadpool was when he came home from a busy day of mayhem, he slipped into his crocs.
I don't wear heels anymore. Since my office went to jeans I rarely even wear dressy flats. Mostly sneakers, or birks. Yes, I can fall over my own feet in flip flops, or barefooted.