Not sure that I understand what you mean by 'broken'. I intend to use medium armor and rapier - which is dex-based (yes, only +2, but it is not the main idea of this build).
While there aren't any Strength requirements in this interpretation of D&D, there is weight.
You get 10 pounds of lift per point of strength, so at 8 you'd have 80lbs MAX lift.. which puts you at moderately encumbered somewhere around 55 or 60.
Just the body piece of medium armor is between 8 and 14, a shield is about 3, another pound for your weapon.. Absolutely minimally armed and armored you're half way to shutting down jump and limiting movement to half. You're not yet wearing boots, gloves, helmet, a bow/x-bow.
This doesn't mention the inconvenience associated with being the face of the party used to buy/sell equipment/goods you can't carry. The disadvantage of being a front liner with a gimpy jump. Never being able to carry or equip heavy armor.
You asked our opinion, so I'm giving it.. It seems like you're trying to create the perfect character for all situations, and forgetting that you're a party of 4.
A charisma of 16 and higher stands on it's own, there is no reason to gimp a front line fighter or striker just to make your other stats average.. Not when those stats are perfectly fine for a lightly armored character like you have in option 1.
