In Ryuki, Ryuki, Knight & Zolda are the main hero riders. Ouja uses his unite vent on the 2 beasts he contracted along with Venosnaker.

If Ryuki possessed a unite vent like Ouja, what would you picture him using it on Dragreder, Darkwing & Magnugiga?

Pretty similar looking actually. Magnugiga forms a dragon-like body, Dragreder becomes the head and tail of said body and Darkwing attaches on the back to form the wings.

Three questions to ask
Which would you prefer Alain and Makoto or Gou and Chase?
Alain or Chase?
Is Ghost copying how Alain fits with the humans like how Chase did in drive?

When will Takeru finally grant his wish of coming back to life? Or will he just pass away at the end passing his power to his offspring?

Gou and Chase. They have a better dynamic together and are better as individual characters.

Chase. Alain is the best character Ghost has to offer but I like Chase better.

Not really. Alain already has an understanding of human society and while he's different from humans he's not that different than Chase was to the rest of the Drive cast.

Chase lacks human emotions, Alain doesn't.

Either next week or in the finale of the show is my guess.

And what offspring? Unless Takeru was "busy" with the ladies before the show started I don’t think he as any.

This raises a question. So any of the past Riders have children? Aside from Shin, I've heard he does.

Yup, Masao Kurenai (Son of Wataru / Kiva), Kotaro Nogami (Grandson of Ryotaro / Den-O) and Eiji Tomari (Son of Shinnosuke / Drive) are the ones I know of, there may be more.

I'll keep it simple: I will take any character from any show (that isn't Kiva) over anything from Ghost at this point.

I wouldn't say Ghost is copying Chase's character arc with Alain, but they aren't doing something that's wildly different from it.

If we can include more than just main riders, the 3rd Mage had a son (He was the reason he even became a Mage) and Dark Kiva also had a kid :p

Dark Kiva had 2 kids. Well, 2 different Dark Kivas had kids. We don't know if the most current one ever had a kid but the 2 from 1986 both had kids. And one 86 Dark Kivas was also IXA. And that IXA was also a mother of a Lass who was IXA in 2008 but that IXA mom wasn't the IXA who was Dark Kiva.

Kiva is a lineage clusterfuck. :lol