Can’t pick my subclass

I’m making a new wizard character that sounds really fun to play the more I think about it.

Warforged wizard with one level of draconic sorcerer for the ac boost, extra utility cantrips and backstory reasons.

Play him as a disgruntled personal assistant to an archmage who went missing years ago living his life out from under the master’s shadow. 

Order of Scribes sounds like a great fit with that backstory, but Bladesinger sounds more fun to play

Can someone who knows wizards better please help me pick?

Yeah, higher wisdom would probably be more useful than the charisma, but with one level of Draconic sorcerer I have an AC of 17 and don’t need to use a spell slot for mage armor. I’m not doing any more levels in sorcerer, but the dip felt helpful to be less squishy 

Order of scribes sounds like a good fit as long as you are in a campaign where you can buy or find scrolls or spellbooks. You need a lot of spell access for Scribes. 

Personally, i like Evokers.

IMO gameplay trumps the backstory.  When I build a character, I first decide what I want the character to do and how I want it to play.  That determines which class(es) I select to create the character.  The class is simply a mechanical chassis to provide the gameplay experience I want.  The session to session behavior of the mechanics and their manipulation is what I find important.  It doesn't matter how cool my backstory is, if I don't enjoy the manner in which the character interacts with the game.

Once I finish determining what mechanical chassis the character will use, only then do I develop the story of how my character obtained those abilities.  In the situation you describe OP, it sounds like you think the Bladesinger will be more fun.  THAT should be the starting point.  I would not recommend compromising on the "feel" of the character to fit a story which will probably have no further impact on your character than compromising it.

personally
i love abjuration
arcane ward legally allows you to not have to roll concentration checks if it absorbs all the damage,
and arcane ward also makes cloak of displacement not turn off upon taking damage if arcane ward absorbs all the damage,
and arcane ward also protects armor of agathys and allows you to get a lot more revenge damage procs off, which you can get on wizard by taking the feat spell shaper and then selecting frost rune,
spell resistance is very useful,
the new spell breaker is a pretty good buff, bonus action dispel magic is great,


but divination wizard is objectively the best wizard subclass, portent is overpowered, esp in tables were there is very few encounters per day