I highly suggest the Warg Rider! The Warg is fantastic.
This line appeals to me. I especially want the Warg rider and Goblin King, they look great. Some of the articulation is limited, but it is generally on par with what Hasbro had with Marvel Universe. Still sad over the fate of MU, but c'est la vie.
I got She-Hulk awhile back (think she's in this thread somewhere, actually) and I totally forgot that I picked up Kang! I've seen Punisher and Beta Ray Bill, but I don't have much interest in the characters so I left them. Haven't seen Scarlet Witch, but I'm not much interested in her either.
Congrats on your finds. Kraven and Juggernaut are definitely among the best villains the line has had. Did you have any luck picking up Beta Ray Bill, Scarlet Witch, She-Hulk or Punisher yet? Or Kang?