Big Finish has done it again. "The One Doctor" is witty and engaging. The storyline makes excellent use of the audio format treating the listener to sparkling dialogue.
Colin Baker continues to shine as the Doctor in a way he was never allowed to on screen. This was my first exposure to Mel as a Companion, and while I wasn't blown away by her character, I did think that she had some fine moments.
Overall, I highly recommend "The One Doctor" as a fun, lighthearted romp across the cosmos with our favorite Time Lord.