These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Big Finish Doctor Who
WARNING! THERE MAY BE UNMARKED SPOILERS!
Archive Panic: Pretty daunting when combined with that of the main series, especially now that it's beginning to eclipse the original in runtime.
Base Breaker: Charley, companion of the Eighth Doctor, seems rather divisive among the fans. Some see her as a brave and adventurous foil to the Doctor, while others have the same problem with her that they do with Rose: that she and the Doctor were subject to a Romantic Plot Tumor.
There are also some who find her to be both, Depending on the Writer. And unlike Rose she admits her flaws and the romance lessens.
The Dalek Time Controller repeatedly proves to be one, having a cold, calm, and calculating personality that sets him aside from his Dalek underlings and being the true power in charge of the Dalek conquests and implicitly the Time War, which coupled with his sadistic attempts to break the Doctor in "To The Death" by forcing him to watch all life on earth die before killing him lead to the otherwise kindhearted and casual Doctor furiously vowing to exterminate the Daleks from creation if he ever get.
The president of the English Empire Nigel Rochester in "Jubilee" is one of the more disturbing villains in the Big Finish series, being a Dalek worshipping human in charge of a nightmarishly genocidal and xenophobic empire which attempts to emulate the Daleks in all the worst ways, while remaining cheerfully upbeat and affable even when mutilating midgets to fit in his "toy Daleks" or beating his wife for speaking in contractions. The fact hes voiced by MartinJarvis make him all the creepier.
Wendle Marr from the much-maligned "Nekromanteia" happens to be the most despicable and unlikable character from a cast made up entirely of despicable and unlikable characters. He starts off the play by sending a fleet of ships and their crew to their deaths, then has the gall to order the flagship's commander to die as per his company's protocol. When the guy refuses, he has his assistant prepare to destroy the guy's livelihood and the lives of his family. He later receives funds to help improve the horrid quality of life for the workers on his pet project, but decides to instead pocket the money for himself and kill all the workers once it is finished. He is so evil that even the aforementioned ship commander (who tries to rape companion Erimem) is more likable than him, with his assistant killing him and making the ship commander CEO of the company instead after his greed nearly causes the destruction of the whole universe. Seriously, TheDaleks have done more good for the universe than Wendle Marr.
Foe Yay: The Macqueen!Master tries this with the Eighth Doctor, while at the same time noting that he couldn't stand the Seventh.
"Funny Aneurysm" Moment: The Eighth Doctor and Lucie on a crashing spaceship in Max Warp. It turns out to be a simulation. Played for laughs but considering what eventually happens to the Eighth Doctor...
What happens to the Eighth Doctor?!? Both of them should have just avoided spaceships the rest of their lives considering what happened to Lucie...
Harsher in Hindsight: The Eighth Doctor starts Big Finish by saving a girl from a crashing ship. Now think about how he ends...
The Dalek Time Controller, who manipulates history for the advancement of the Daleks. They are even Genre Savvy enough to know when not to kill the Doctor due to the Web of Time. This is well-shown in "The Dalek Generation" (even if not in Big Finish it is attached to that continuity) where the Controller forces the Supreme Dalek to say it will obey him and comes very close into out-manipulating the Doctor through history into helping the Dalek plan to turn 400 planets into copies of Skaro. Unlike Dalek Caan, when hurled through time it doesn't turn against the Daleks in horror at what they have done but merely thinks of how it can enable the Daleks to rule the Universe.