Want to try this type of build but i have some doubts.

First one is reactivity, both pal and bard have it a lot and oathbreaker have very good dialogue options that fit my evil Durge walkthrough, will multiclass override bard dialogues over oathbreaker?

Second is the weapon style issue, because sword bard has duel wield and one handed battle style and i don't want waste them, so better option will take defense on paladin lvl and dueling (onehanded) or dual wield (weapon in each hands)? Which one will work the best?

Third is ability points, which one should i maxed and dump due to items that can increase them anyway? For example, dump STR to 8 and give all to DEX and got in 3 act Gloves of Giant Strength or dump dex and just take glove of dextirity and give all to STR?

Fourth i just dont know how to split those multiclassing, most of guides shows that paladin need only 2 levels and rest should be in bard for example 2/10, but does it really worth it? or maybe is better option is just give 3 levels for figthing style to bard and rest should be paladin?

And which type of armor would work in this combination because it provides that character can use any of them, as heavy and medium