Ultimately, I'm very happy with Harvey's build in BG3 (Rogue(Thief)4/Ranger (Hunter)8), it suits his character and fighting style the best - he's quick, efficient, double wielding two shortswords or using a longbow depending on the situation. He's both a damage dealer and a tank with stupid 24 AC thanks to one particular armor you can get in Act3.

But I haven't forgotten about my Paladin!Harvey idea... And though I haven't multiclassed him into one- i considered that possibility in my head for a long time-, I found I could definitely lean into the flavor without doing so? He's got his second favoured enemy as a Sanctified Stalker - he gets the Sacred Flame cantrip that way, and I also gave him the Magic Initiate: Cleric feat to be able to cast Sanctuary spell in particular. Both are definitely not optimal - the Sacred Flame DC is laughably low because Harv's wisdom is 'only' 15 (+2) and he can cast Sanctuary only once per long rest no matter the spellslots. But I like the idea of some sort of entity watching over him gifting him its protection, which he can extend to people he cares about in turn.

*Cough*definitely didn't take Sanctuary for the Cazador fight to shield Astarion. Unfortunately it never came up, Shadowheart was more than enough for that purpose. Hasted Harvey was just a very fast woodchipper in that fight.

Harv definitely would be better off with a melee feat like Dual Wielder, but tbh...playing on Balanced Mode for the second time and this time around knowing what I was doing a bit more...the game doesn't require you to optimize builds to have fun...and win.