I like questions in title, have you notice?
Well, Wiktionary is not the only dictionary around, there is plenty of those. Modern ones, old ones. By scholars, press editors, software editors, academies (such as Académie française), everyone (such as Urban Dictionary). For all of those, there is some aspects better handled and flaws.
I think it could be interesting to point out the better aspects of Wiktionaries competitors. It could be a way to think about enhancement for our project.
And you, which dictionary do you like most? Which aspect is better than the Wiktionary you know?