First off, I know Pinkie's personality sinks up with the Pyro's hallucinations; like I said before, I don't care about personality match-up unless all else fails. My main focus is skill and habit. Skill because, let's face it, Twilight Sparkle only shooting straight is boring and dull for a character who is supposed to be a wizard. I took into account Pinkie Pie's use of gadgets; she is the only character to do so in great amounts. She has toys stashed all over the place for emergencies. She likes to throw parties. Pinkie Pie is not a one trick pony - she does a lot of things. Making her a class whose only skills are setting things on fire and un-setting things on fire? That's extremely limiting for Ms. Pie. For me, it had to be either a class that was noisy (Heavy, Soldier, Demo) or a class that was resourceful (Engineer).The Applejack thing has me confused - when did Applejack ever build anything? Besides the raft in Pinkie Apple Pie, that is (her family helped build that; we have no idea just how much skill she has in building). During the Apple Family Reunion, she simply sang while everyone else built the barn, and I forget if she has implied the need to build a new barn after Rainbow destroyed the old one or if a new one already existed and said old barn was just overdue for demise? I don't really think we've ever seen Applejack build or imply building anything on her own, or even build anything with the greatest amount of work put into it. If I'm wrong, please correct me.Sure, we've never seen Pinkie do it either, but we know she uses gadgets; that already sticks her up higher than AJ. Bonus points if she actually does build her stuff (which we also do not know).Spike actually uses fire, and is actually fire-resistant; the personality differences are negligible. Pinkie actually uses gadgets and is notorious for multi-tasking; that made her ideal for Engie. When you match by personality, you often force an extreme limiter on the characters; like stuffing someone in a closet with no elbow space. Sometimes, you even introduce them to outright contradictions (Twilight Sparkle calling Applejack 'egghead' and 'booksmarts' particularly bugged me.