I think Monk is funner to play, but also more difficult. From what I've seen of monk so far it seems a lot more movement based than Dragoon at early levels, although at 50 Dragoons will have to do a fair bit of moving as well.
About how many buttons do we talk? And "difficult" .. do you mean that some people never get good at playing this class, or that it only takes a little bit longer to remember the rotation?
If i take a monk, which class for the start should i take?