Other,
It depends on the situation. I am a tall woman, few guys are interested in tall woman because they seems to be intimidating or men think that we want a taller guy and therefore think we aren't interested. I call that an asset, because I can walk everywhere I want without the risk of being a tiny and therefore easy target, so the fear of being raped is smaller than let's say a petite woman. That's just physics. LOL.
When stealth, I think the risk of violence is greater because we have a secret. When you don't pass (or don't pass yet!) this risk is smaller, maybe because they notice you are trans and leave you alone. But then again, it can also turn against you in the case of transphobia. But when you are passable, and guys find out, they might resort to extreme violence, whereas if they date you and know you are trans on the looks of it, the secret is already out in the open.
So I don't think that passability equates to safety that easily...
I like to add: Many females learn (either through hard lessons, or advice from other females) that you have to be very careful with guys. Men think completely different than females, and have other instincts than females. Men can resort to violence much easier than we would ever think. Sometimes I forget that myself, but I must remember it because it can save my life one day. Be careful around men. that also applied to cis-woman. So it's a valid concern.