The best episodes of Frasier are those based on farce with 'the big pay-off' at the end and The Ski Lodge is a perfect example of this. Incredible writing, expertly played with a multi-door set that is a character itself. I must have seen it 50 times, but still laugh all the way through.
This is exceedingly difficult. It was painful to leave out Motor Skills, Shrink Rap, Flour Child, Voyage of the Damned, Dad Loves Sherry..., Word to the Wiseguy, The Two Mrs. Cranes-- among others. But ultimately I chose the ones which, I thought, had the strongest writing throughout. And generally those include Niles.
This is ten, of my top 50 episodes. Still working on the top ten, this is just simpler. I will release the top ten after I'm done with the 50. See you in ten episodes;)