DRG is better than MNK? First off that is not what he asked, he asked which is more fun.
I have a 50 MNK and currently lvling my DRG which is at 38, it all depends on what you want,
they both need to move a lot but the MNK has a bit of a ramp up time.
Me personally? MNK is a beast that slumbers and awaits to awaken and it's a hell of a lot of fun to play. To reply to the ignoramus here, the class is only as good as the player, I've played with both great DRGs and crappy ones and I've been told by others how good of a MNK I am and I've seen my share of crappy MNKs. Before you go on an endless babble of reasons why DRGs are "better" I'll have you know, You have not played with me.