I'll throw another bunch of genres into the mix here - those draped in the Gothic
It's pretty hard to separate them out, as styles tend to vary slightly from album to album, but this is definitely the music I love the best. The overlap into Symphonic genres, female fronted or male results in some heavenly music. I'm just going to list those of my favorite groups which I can remember right now.
Flowing Tears (I currently have For Tonight stuck in my head)
Asrai (Something I Said can get stuck in my head for days at a time)
Tristania (God I hope they stay in this genre)
Myridas (Some truly epic tracks)
Elis (RIP Sabine, never can be the same again
After Forever (early releases)
Evanescence (who come and go with this genre, their older stuff is the best by far)
Gothic Doom Metal:
Tales of Dark (Of grandiose fevers and passion arcane is fantastic)
Theatre of Tragedy
Chalice (Australia's best offering so far)
The Sins of Thy Beloved
Symphonic Gothic Rock/Metal:
Stream of Passion (Arjen Lucassen as a whole is talented)
Nightwish (Best assumption out of many genres, Power Metal too)
Krypteria (more power metal I suppose)
Leaves' Eyes (Liv Christine's voice is an aquired taste, and the poor girl looks like Schumacher in a wig)
Cinderella Effect (More electro-gothic, like Suicidal Romance or even Butengel)
Midnattsol (Folk Symphonic)
Therion (only really became Gothic later, some excellent music)
Xandria (Not really Gothic, although who knows with the new singer)
Gothic Black Metal:
Cradle of Filth
Eternal Tears of Sorrow (really belongs to many genres)
Trail of Tears (Manage to be symphonic too, Blood Red Trance is excellent)
Luca Turilli's Dreamquest
Emile Autumn - I've left this one on it's own because quite what you classify it as is a mystery to me. It's (she's) everything, and WHY didn't I go a few miles up the road to see her when she played Ilfracombe! *bangs head on wall repeatedly*
I've not touched too much on the bands which are not closely associated with the Gothic genres, as then the list would go on forever!
I've been listening to these genres for a decade now, some good bands have sadly gone, but there is some great talent out there.
...love is just a camouflage for what resembles rage again...