Why I ask to compare?
 
-Both are heavily detailed 2D fighting games
-Both are very flamboyant
-Sexy Characters?
-Both use a semi Goth theme. 

I'm not entirely familiar with either verse, but Darkstalkers character roster just doesn't do it for me as a whole. Guilty Gear. 
By the way, have you been gone for a while Godwind?

Vampire Savior, the combo's are more fun to pull off and I prefer the music. I don't like heavy metal :P 

There was a rumour that spread a while ago from an interview when the GG team said that they were heavily inspired by and loved Darkstalkers.  I would definitely love to see that, I can even see some matchups
 
Morrigan vs I-NO
Demitri vs Sol Badguy
Donovan vs Ky Kiske
Felicia vs Jam
Lei-Lei vs Dizzy
Anakaris vs Faust
Sasquatch vs Potemkin
Zabel vs Eddie
Bulleta vs Zappa
Jedah vs Testament
Dee vs Order Sol
 
 
However, someone who seriously thinks about it could definitely pull up a much more fitting list

id rather have a Darkstalkers vs Rival schools :p

Guilty Gear is probably the better fighting game, and definitely has the best music, but honestly, I can't say I like one more than the other.  They're both fantastic.

Guilty Gear is probably the better fighting game, and definitely has the best music, but honestly, I can't say I like one more than the other.  They're both fantastic.