Well I won't name my top five because it's a sin to let the public know about underground but my favorite, as of late starts with:

Siouxsie & the Banshees
Bauhuas
My Life With the Thrill Kill Kult (gothic/industrial I know, lemme alone)
The Sisters of Mercy (very recently, I hated them the first time I listend to them but now I love them)
Switchblade Symphony

I can also name bands form the Crow soundtrack if you want but the only remotely gothic band I'd be naming would be TKK wouldn't it?