I recommend playing them in reverse order.
Kabuki Den gets off to the fastest start, it's very colorful and immediately wacky and entertaining, it's got the best group of characters and the most memorable moments, and it's the flat-out best of the three.
Then play Manji Maru. Its menus are basically the same as Kabuki Den's, so you'll feel right at home. It's an outstanding epic.
Then play Ziria. It gets off to a slow start and it's quite primitive compared to the other two, so if you haven't already played them, you might be less willing to sit through the dull early parts. But it gets great before too long.