I'm Indecisive

I really want to start a comic, yet I have two ideas for what I could do. I was wondering if anyone could suggest which one I should start with? (Both ideas are warrior cats related)

Idea one: Without Demons, the life story of Firefang from the Ask Community.
Summary: Firefang, Snaketail, and Sunshine, the half-demon kits of Shoal and Ashwind, live in a world filled with magical abilities. Because of their ancestry, Snaketail and Sunshine find themselves with these abilities, but Firefang doesn't, despite how greatly he wants to. When Firefang harms his ability to do much of anything, he leaves AskClan with Snaketail. Firefang, who had been teased during all of his moons spent in AskClan, seeks revenge. He soon discovers that the vengeance he yearns for might be harder to obtain than he initially thought.

Idea two: Je Suis Le Heavystep(I am the Heavystep) from the Heavystep and Pals AU.
Summary: Heavystep, a young RiverClan warrior, was born with powers beyond anycat's comprehension. He always wondered, simply, why? When a mysterious cat starts to meet him in dreams, he understands. He has to either let the Clans fall or to make them thrive.

Personally I prefer Without Demons, but I wonder what your input is!