Summoner and BLM differences

[AspectOfWinter]

snip

Okay, so now that I've argued to death Miranda's background, it's time I told you about the real dilemma I am facing.

For gameplay purposes, I intend to level all three classes to 50. For RPing purposes, right now I am most leaning towards Summoner as being the Job that most "fits" Miranda. Unfortnately, IMO Summoner is only 1/2 a Job, given that most if not all Summoners from previous FFs were also some other Job (Yuna and Garnet were combination WHM/SMN, while Rydia was also a BLM). And even if Scholar doesn't HAVE to be a warmonger per se as many others have pointed out, my problem is that Miranda probably would not be interested in becoming one - she is ultimately allied with the Scions, and not the Maelstrom, so for her to remain an adventurer would pretty much defeat the purpose of becoming a Scholar, since their arcane geometries were designed around providing protection and giving direction to Marauder units.

So as far as I'm concerned I have 3 options:

1. Canon Archmage: From what I can see and others have said, lorewise it is very difficult, if not impossible, for a single adventurer to canonically level all three DoM classes to 50. My justification would be that the Echo granted Miranda mastery over magic to a higher extent than other adventuers, and the Soul Crystals allow her to switch between them at will, but I still think this is kind of pushing Mary Sue territory.

2. SMN/BLM hybrid: Both of these Jobs share the same cross-class abilities and Limit Break, and the BLM story has a lot of things about it that I like. The beastmen you meet are more accepting of you than the WHM Padjals and pave the way for the other beastmen quests, and the Archer subclass also would fit Miranda's background, if she initially wanted to be an Archer but dropped out due to Silviarre's abusiveness. The irony, of course, would be that the THM guild is located in, and worships the deity of, the city that most blatantly embodies the attitudes Miranda is resentful of.

3. Being only a SMN for now, and getting a secondary job a couple years down the road in an unreleased DoM Job: This is risky, as I've not only exhausted the sidequests to level those first three, but there's no guarantee that Red Mage or Geomancer or whatever they release would, in fact, be fitting.

So, TinyRedLeaf, as an avid roleplayer which one would you most recommend?