For someone who's not already familiar with your work, I'm with kumanooni in beginning early in Conflict of Honors. My first choice might have been the scene just before that, the one labeled Shipyear 65, Tripday 130, where Priscilla first comes aboard the Passage, but the one she recommends is equally good.

I'm also fond of a couple already mentioned: Agent of Change, where Edger is introduced, and Scouts Progress, the injured courier run.

I have several favorites from Plan B but suspect they may require too much backknowledge for new readers/listeners. The scene near the beginning where Val Con and Miri meet with Jason, ending with the incoming Yxtrang raid. Shan's landing on the planet and his reunion with Val Con.