This post made me happy. Good on ya, young one! Always great to see people pick up the greats and enjoy them years later.
As for the Divinity series, here are my thoughts:
Divine Divinity: The legend that started it all. Seriously its a GREAT game. But it does require a lot of patience and isn't overly intuitive. That by itself may not be a bad thing for you, but there it is.
Beyond Divinity: Meh. I have to be honest that I didn't play this much. What I did play didn't match Divine Divinity. But don't take my word on it. Someone who has played more of it should give you advice on it.
Divinity II: It's actually really good (I have the Developer's cut from gog). Same type of quirky humour that's prevalent in the Divinity series. Fun gameplay, good character development. A really solid RPG.
As much as I LOVE Divine Divinity, and to a lesser extent Divinity II, they aren't as good as Planescape Torment, or the Baldur's Gate series or Fallout 1, 2, or New Vegas. (didn't like 3. LOVED NV!!!). I know that is a debatable opinion, but as you said you didn't even like Fallout 1 (HEATHEN!

), my opinions may differ to what you need to know.