Carl Sagan is both male and sadly deceased. I miss him.
In as much though as I have always wished I could be his equal, I will pick him in honour of his accomplishments.
I am also fond of David Suzuki even though again he's curse with being male

I have always loved Robin Williams as being one of the best actors of my life (even with him being male).
In female choices, oh I so wish I could stand next to Celine Dion and be indistinguishable from her singing skill. I'd like her hair too