Optimal construction of "someone who not only is _____, but has _____"?

I'm struggling to figure out which of the following constructions is optimal...

"Someone who is not only beautiful, but has a heart of gold."
"Someone who is not only beautiful, but also has a heart of gold."
"Someone who is not only beautiful, but has a heart of gold, as well."
"Someone who is not only beautiful, but who has a heart of gold."
"Someone who is not only beautiful, but who also has a heart of gold."
"Someone who is not only beautiful, but who has a heart of gold, as well."
"Someone who not only is beautiful, but has a heart of gold."
"Someone who not only is beautiful, but also has a heart of gold."
"Someone who not only is beautiful, but has a heart of gold, as well."
"Someone who not only is beautiful, but who has a heart of gold."
"Someone who not only is beautiful, but who also has a heart of gold."
"Someone who not only is beautiful, but who has a heart of gold, as well."

Any guidance or opinions?

Solution 1:

Your suggestions which start "Someone who is not only beautiful, but..." are bad because they mislead the reader into expecting an adjective (or adjective phrase) which is parallel to "beautiful" and can follow "is".

A problem I see with your suggestion "Someone who not only is beautiful, but has a heart of gold." is that you want to portray two good aspects of the person's character, but the "but" leads the reader to expect a contrast. I think that you need an "also" or "as well" to prevent that interpretation. So on the whole, out of all your suggestions, I prefer these:

"Someone who not only is beautiful, but also has a heart of gold." "Someone who not only is beautiful, but has a heart of gold, as well."

You could replace that final "as well" with "too" -- that would work, too.