Bialik’s delivery of questions is really good. The only downside of her hosting is she sometimes has very long pauses before she says someone is correct. I’d heard speculation that it’s because she made a slip up early on when she awarded points for an incorrect answer and the producers wanted to make sure that doesn’t happen again.
Since Ken is arguably the Jeopardy goat*, he’s much less likely to make this type of mistake.
*Brad Rutter should be up there because he beat Ken a few times in tournaments of champions and was unable to have Ken’s streak because Brad was from the 5-wins-and-go-home era.