Do you think would be the most likely to go bad?
They're all related to Whitestorm, and it seems like the males of Whitestorm's blood-line are cursed!
I know that he could possibly be the father of Graystripe (I hope he is) and maybe even Darkstripe, but for the sake of this, I'm only going to list the sons, grandsons, etc, that have been confirmed.
Without further ado..
Rainwhisker - died pretty early, before really getting to make a name for himself
Sootfur - same as Rainwhisker
Ashfur - it's Ashfur
Molepaw (grandson) - died really young
Larksong (great-grandson) - died fairly young
Now, onto the list (If I'm missing anyone, please let me know)
Molewhisker
Fernsong
Flipclaw
Flamepaw
Baypaw
My vote's for Molewhisker, as much as I love him, he seems to be HEAVILY influenced by his parents, like in Dovewing's Silence, when he, his sister, and possibly Rosepetal, lured the Dark Forest trainees to a fox as a "joke"
However, he has grown up since then, so maybe he's changed?
Flipclaw would be an interesting choice, Bristlefrost could be fighting for the good side, he could be fighting for the bad side, and Thriftear is just there...existing