GSII and Vigor are vaporware as far as Im concerned. We really dont know anything about them. The Bionic is almost tangible at this point. We've seen pics and know specs. I have no desire to wait another 6 months after waiting 8 months already.
Looking at the Bionic specs, it looks like it'll be more than capable. If the SGS2 or Vigor end up being "better", oh well.. they will not have existed when the Bionic came out, so it wont matter.