Depends on what you'd consider your main, with Relics being upgraded its nice to just focus that as your main or only focus on one upgraded Relic. The most important stat for all Jobs is your weapon i.e. weapon/magic damage. If you're lucky and can get your Atmas fast the process becomes easier, you just need to be able to farm the myth. The good thing about Novus is you can change the stat and with Bravura you have 4 choices you can roll with accuracy/parry/determination/crit rate...2 of those being fairly cheap and the other 2 being very expensive. Conqueror isn't a bad choice, it's a really nice weapon but it's a patch away from being irrelevant while Relic can pass it now as Novus and even more so with Nexus.