Wierd, I like sedna, regulus and TB.  However, I don't really like the look of oak or erebus.  It is definately all about individual taste.

Kinda like maps.  I pretty much despise prison even though it is probably the most popular.

I like all of them but QoT.  Her implants go against nature (she would be much more attractive if she had normal/athletic size breasts) and in game her plant ride has too many tenticals/twitching for my tastes.

That said, she's fun to play and really good so from that perspective her looks don't stop me from playing her.  I just hate clicking her from the character screen.

-Jara

I like the chick on the tiger, and she's my current choice DG. Them yetis pack a punch (or swipe... LOL!) 

Oh, and they are NOT YET gods so they don't really have to look godly yet.

Hooray for the chick on the tiger! LOL!

LOL, I don't mind the boobs at all.  I remember seeing close up shots of her and thinking wow, a half naked chick that floats, and is covered with vines....that's cool.  But then you get the game and see the whole beetle/flower thing and that sort of killed it for me.

It reminds me of the whole pumpkin carriage thing.  Kinda hokey.

Erebus (or Aerobus as the OP called him) looks cartoony with his odd skinny proportions, almost like a Warcraft character.

Queen of thorns' chariot puts me off, and the fact that shes on alot of adds in a shameless attempt to sell more copies using her big barely covered tits.

Sedna has the warrior princess vibe, which is o so cliche. Plus her frostsaber or whatever isnt a very original concept. Again more oversized half exposed tits. (I aint against tits but I aint into 3-d CGI girls either, to me it says 'if your playing this game you must be sex starved!' thanks alot GPG! Or hell maybe its the graphics designers there that need some action)

Torch bearer is awesome except his skinny bare burnt limbs should have been armored or covered in tattered clothing.

Unclean Beast looks scary as hell! Thumbs up there.

Rook and Oak are both awesome, but perhaps a little too similar in style.

Regulus looks OK, though I would have perfered a good old longbow as his weapon, and a different voice actor.

Oaks the coolest!

Ah if only there was a DG riding on a dragon, now thats awesome

The break down:

The "chick" (Sedna) is not just on a tiger, she's riding a saber-tooth tiger and has a spear.  In essence, she's an Eskimo; this also explains the Yeti she spawns as her minions.

Regulus is an angel that's lost his wings.  If you zoom in on his back you'll see where the bloody stubs are where they were chopped off.  He's like what would be if Rambo was real, died, went to heaven, lost his wings, and came back to kill everyone.

Unclean Beast is not the "only non-human Demigod," the Rook is a living fortress with the soul of it's builder controlling it (read the backstory, it's very interesting).  The Vampire Lord is just that, a vampire (this is not human per say, but instead undead).  The 'mage' is really a demon type thing.  I'm unsure what he is, but he changes graphics when phasing from Ice to Fire (it's really cool, actually).  And, the Queen of Thorns is not at all human either, but instead more of a magical wood imp.  The only true human types are Oak (an immortal knight), Sedna (Eskimo lady), and Regulus (fallen Angel).

Overall I like the unique look of the Demigods and their individual personality.  It's better than most games that copy-n'-paste most looks and play styles of each one into the others.

Do you know what the word "humanoid" means?...
That they got 2 hands and 2 legs and one head on the top with 2 knees on 2 legs and so on...
it dosnt mean they must be humans... Rook is humanoid just as the vampire and any other DG except UB

Rook is the clear winner from an art design stand point. What an awesome character model, huge and badass, really appealing. 

I'm a big fan of the Oak as well. really nicely designed armor and sometimes you get a peak at the fact that there's nobody inside the suit, can see this clearly during his death animation (where the whole thing surges with light then blows apart leaving no body behind). 

i also like the Unclean Beast. its a huge demonic zombie gorilla/wolf monster thing. if you look closely at it you can see that its completely inside out. bones on the outside, then guts under the bones and a layer of rotting muscle and skin at the lowest level. its disgusting but also awesome. 

Sedna is definitely the weakest design in my opinion. i know the artwork matches the backstory (which is actually a really nicely written piece of fluff, by the way) but its still a boring character design. just a chick on a tiger, nothing all that exotic about it. its a big tiger i guess. 

The truth is that i think that the DGs were ment to be a very high detailed DGs such as Rook
we all know Rook was the first DG to come alive during the consturction of the game
so i bet that is the reason he is so cool, after that the designers saw how long and difficult it is
to make another DG such as Rook so they went on simpler things with less poligons and cool details
somehow i think Sedna was the last DG to be designed as they have no time left they oviously did her in a rush.