I'm liking this one. It's origins are sad, however, because it came about as a result of my "Hogwarts" birdbath's demise. Well, just part of it, the bowl part, didn't survive winter storage. (I'm blaming Brian for carelessly rummaging through the shed, but he's denying it.) I found this replacement bowl piece at my favorite gaudy glass pieces place, Marshall's.
It's not worthy of being on the grounds of Hogwarts as was the original in my not-so-humble opinion. Just look at it! It was practically "growing" out of the ground.
Which one do birds prefer? Neither, Their first choice is the puddle on top of my pool cover. They only use the fancy ones when I drain the top of the pool.