hello all, new to the forums, new to FFV!

perhaps this subject has been beat to death, perhaps not.

what jobs are vital, worthy, pointless to master?

from what i've read in a couple FAQs
vital: summoner, whm, nin, sam, monk, mime
worthy:trainer, hunter, blue mage, black mage, thf

anyone else have opinions? which jobs should i master? what abilities go best w/ non-inherent jobs? etc etc.

here's what i assume would be potentially good combos:
whm/sum or blm/sum(both mastered)
monk/sam/nin/knight of some sort
thf/bluemage/hunter/trainer of some sort

i actually want to stay away from mime and try to stick to pure job-esque characters...perhaps i'm thinking too much of ffxi :foot: =-/

anyway, some advice or knowledge would be greatly appreciated