There are a host of fantastic glamour items that aren't class specific and can be used to create really interesting and distinct designs.
Not talking about those here. :P
This is just an open invitation to share which job-specific item set you like the most! Multiple answers are okay especially if it's different answers for different jobs.
My favorite is the Skallic caster gear.
Not as into the default colors, but it dyes insanely well. As a complete set it can look interesting imo but I especially love the way every piece can be divided and paired with other elements.