Yes,
Rikae wasn't choosing a lone wolf, but she knew that her pick would probably be her last one.
That is worth bearing in mind.
On
Lalaith - yes, she'd be a risky pick and I'm not sure if
Rikae had gone for cursing her because she really would not have had time to gte all info from her. Obviously,
Lalaith has not given her the identity of the ranger (or then she just hadn't told it to her wolves) - whether because she doesn't know it, or because she's innocent.

There's one way why
Lal would have been a good pick, anyway:
Rikae could be sure that she was an ordo and thus would 100% certainly turn into a wolf.
I should vote soon and I still have little idea... except that
Gwath seems more innocent now, I think.