I love tall boots:
Check out all those straps and buckles! Fact: there is no boot that is not improved by at least one strap and buckle.
And I love short boots:
Little bows! Hints of fur! More buckles and straps and studs and sassy laces and tiny buttons, oh my!
The thing I love best about boots is how versatile they are. You can wear them with a skirt, tucked into pants, done up over pants (I would only advise this with specific pants though, jean-bulge is no fun!), however you like! They can make an outfit feel wintery, give it a bit of an edge, or make an outfit look more dressed-up without (necessarily) murdering your feet. And, of course, they can keep your feet warm! That's a success story all around!
I love wearing boots best of all because they make me feel fierce. I don't usually have a ton of edge in my clothes, and an awesome pair of boots can make anything feel rockin'. I actually love the look of a flowy dress/skirt with a pair of boots; it weighs the outfit in a totally different way.