I was typing this earlier, but it stuffed up, so I had to retype it; please excuse any oddities.
These are my honest thoughts about each of the original eight demigods (from dark to light randomly);
1. I feel Unclean Beast is too much of a mindless slayer for me, personally. You could put him as a war-god, sure, or a god to beasts and creatures. That would work, but I just don't think a monster like that deserves the mantle. 2. I'm a mixed bag over Queen of Thorns. She's obviously not a goddess of love or passion, considering everything that touches her dies and I don't think she liked being groped by that man. I could really imagine her as a goddess though; I think she would work, but at the same time....I don't know. See what I mean? I don't fault her for being partially naked; that's just her racial quality. Apart from unknown reasons, she'd be one of my favourites. 3. Torch Bearer is really evil, but I liked how when you beat a tournament as him it says he'll become a god of reconciliation and peace. I like the sounds of that, and his whole revenge story would really fit an ascension to divinity. Another of my favourites. 4. Lord Erebus would be too much of a pleasure-stalker to make an effective god in my opinion. Sure he hates himself for draining people dry, if you read his bio, but he still enjoys it. I can't imagine what he would be as a god, sadly. He doesn't seem to fit into any specific role, at least not enough for me. A vampire god that is focused primarily on blood and stuff, sorta like a less insane Khorne, doesn't seem to do good when considering the stuff behind the other gods.
5. Sedna would be good as a spiritual god that speciliazes in healing stuff and harmony. Other minor unrelated things, like fertility and stuff (strangely) could do well too. As much as I hate Sedna in game, she leans closer to a god than most of the others. 6. Good old Regulus is perfect as an avenger god, and easily my favourite for godly material (and no I rarely play him). Vengenace is his thing, not quite as much as TB's but still strong, and has various other justly things going to. A divine and justice-based avenger god is better than a revenge-driven dark retributor in my opinion. 7. Oak is just awesome. Let's leave it at that; my second favourite behind Regulus. 8. Even though he is my honest favourite when playing the game, sadly, Rook isn't as godly material as Regulus, Oak or Torch Bearer. Despite this, he'd still be pretty cool as a god of machines/building, evolution, and stuff like that. If you think about it, he does sorta represent evolution in the way that when you say he can be a god of building, he is moving the world forward into greater things. That's my take.
*I enclosed four demigods per paragraph to reduce the size of this post*
Thos are my opinions; Regulus, Oak, Torch Bearer, Sedna, Queen of Thorns, Rook, Erebus and Unclean Beast.
If I went by my actual favourites and what I think would be coolest....
1. Rook. 2. Erebus. 3. Queen of Thorns. 4. Oak. 5. Unclean Beast. 6. Torch Bearer. 7. Regulus. 8. Sedna. Wildly different.
Very good topic idea by the way synn!