Whilst this tip is for panels, it's also a common tip I give for teaching seminars.
Many of us have been in a class with 5 groups doing the same activity, then all asked to feed back in turn. Same stuff. First group go, then get bored, etc.
Give different foci, or ask only for alt/different points
@samfr.bsky.socialThese are all great tips. I'd add two more....
1) Do not let the entire panel answer the same Q (from you or audience) unless they are disagreeing. No one wants to hear the same answer four times phrased slightly differently.