Well, I enjoyed Doppelganger insane amounts, but I hear what you're saying about JFlan's less than mad acting skillz. Although to be honest, I have issues with pretty much every actor on SGA in that I think they're OTT more often than not, so I kinda just shrug it off, revel in the gleeful cheesiness that is the dialogue and acting for this show, and focus on what each new show brings to fandom...and Doppleganger is bringing a hell of a lot of wonderful ficcage. :D