Living in the deaf dorms, and socializing with the deaf community, I have been exposed to a lot of different "deaf" voices. There is virtually no one who is born deaf/hoh that can't be recognized as being so when they voice. There are some hoh people who can get away with sounding like they have a lisp, and they made be able to fool some hearing people, but not those with knowledge about deafness and deaf voices.
I have noticed that almost all deaf men have the same general voice, as do most deaf women, most severely hoh men, and most severely hoh women; I'm not saying there aren't variations, but there are certain "patterns" they follow. I'm sure it depends on age and speech therapy and all that, but I still find there to be some general catagories. Deaf men tend to have very high pitched voices, and deaf women much lower pitched voices.
Many deaf/hoh people speak CLEARLY but that does not mean "normally" or like a hearing person. I can understand many of my deaf/hoh friends, some have REALLY good voicing skills, but they still have a deaf voice. I also have heard many profoundly deaf people complain about how their speech therapists and parents would tell them how wonderful their speech is, and then other hearing people couldn't understand it. Later, when the deaf people went back and questioned them, they said "well, great voicing FOR a deaf person".... honesty is important here people,
Okay, totally off of that, I personally don't care if a deaf person chooses to voice or not, I think it is up to them. Many deaf people are very sensitive about their voices, and it is an honor to have them voice in front of you, a way of showing that they "trust" you, that they're comfortable around you.
Hearing people often make harsh judgements against deaf people when they hear a deaf person's voice, hearing it as "unnatural." (I find this quite ironic, as a deaf person's voice is the most natural you will get, as it hasn't been affected by hearing other speech/sounds) Sometimes hearing people see deaf people as less intelligent or "able" when they voice, because the speech is often unclear, it makes a deaf person "stand out." Even as an ASL student, it took me awhile to get used to some people's voices and pay attention to the sign quality rather than the speech quality.
Okay, it's 2:15 in the morning...must sleep... hope this posting had some coherence.