That gargoyle statue Alucard transforms into, I always thought that was his "demon form" should he choose to embrace his vampiric side. But probably not.
Poetic and not too crazy. He does grow wings in Judgment with that super attack and if memory serves correct, he immediately laments using it. It's like he uses only half of his dark side and is careful not to be consumed by it.
But..why would the touch of a Medusa Head cause that? I think we got a little carried away here

Either way, Al could be so much more than a Dhampire Jesus.