Define interesting.
Oddly enough, my favorite word is 'articulate.' It just rolls of the tongue so nicely, and I always loved the fact that if you can use the word 'articulate' properly, that probably means you know how to articulate. Circular reasoning at its best, in my opinion.
Runner up, though, is probably 'among.' Think about it. Among. It doesn't look right, and colloquially speaking, the G is silent. It's just plain weird.