I heard about Elektra, I think I'll see her since I'm reading Ultimate Spider-man now.
About the other universe this is what I have to say :
I thought I'd remind some people that Spider-Man does have female villains. Here's the list:
Black Cat/Felicia Hardy - She's just..Amazing <3
Silver Sable/Silver Sablinova - Saw her a bunch of times. Totally epic
Calypso Ezili - Read a comic with her. She scared me in the first place XD
Scorpia/Elaine Colls - Saw her
Patricia Robertson/She-Venom - Heard of her
Scream/Donna Diego - Saw her in few pics. Looks awesome = D
Shriek/Frances Louise Barrison/Sandra Deel - Heard of her when I was browing the wikipedia page of Carnage (Maximum Carnage).
Queen/Adriana Soria - I read Spider Island saga. She was a very b*tch there I can tell òwò