Do you guys hate the mutant riders ?

Gills is a mutant Rider
Therefore I can't hate them

What if we have a KR could have Kuuga/Agito lines ?

What qualifies as a mutant Rider? Anyone with an organic Rider form?

If so then no, I don't hate them. I prefer the Cyborgs but organic Riders are awesome too. And in the end it mostly boils down to the same questions about what makes us human anyways.

What do you mean by that?

Is there still hope for Genm to return later on in the series because I liked him more of the top villain than Parad?

They did not release the behind the scenes photos of him getting a bouquet of flowers in the Toei website so there is a chance he will be back. Of course there is also the chance that they are not posting it yet so we fans can speculate all we want and create buzz/hype.

I'm still banking on him being Chronos, honestly. I wouldn't be surprised if he pulled a Drive and created a data copy of his personality and it ends up manifesting as a bugster, or something.

He seems like the type of character to have that kind of back up plan, and the no flowers thing is suspicious. Although, we know that he's in the Snipe special, so it's possible he's still filming for that, so even though his character is done on the show, the actor is still employed by Toei, and thus hasn't received his flowers yet.

Best Ruthless Rider?
I for one will pick Para-DX.

What do you mean with ruthless?

He's likely behind the nonsense in Kamen Sentai Gorider, so you'll at least get to see him there.