I prefer Brianna to Gatline personally. One more power and if you overpill with her you get one back whereas you don't with Gatline.
I prefer Raven to Pilzken too. Pilzken's good, but that minimum of his is way too high to be overly effective. Best you're looking at is a two power gap that can easily be overcome by good attack or power manipulation. Raven has better base power which I'll take over better base damage, especially in a clan with a damage bonus. Plus Raven can get past DRs and has a much better potential damage output then Pilzken. Max Raven can dish out is a whopping 12 life gap while the max Pilzken can dish out is 10.