I was a high school policy debater back when Ronald Reagan was president. Since 2013, in my "spare time," I have coached public forum. (My day job is working as a law professor.)

Speed doesn't bother me one way or another, but you do need to be clear. I want you to explain to me not just why you win an argument but why the argument wins the round. I'm open to basically any sort of argument, so long as it's not racist, sexist, etc. I try to listen hard to what your evidence actually says; smart analysis of evidence counts for a lot to me, and conclusory evidence doesn't count for much; paraphrased evidence typically counts for even less. Establishing the analytic links in your arguments also matters a lot to me. And weighing is super-important, as early as possible.

I prefer for the second rebuttal to spend some time responding to the first rebuttal and not merely responding to the opponent's case. In particular, if the first rebuttal reads any turns on your case, I will expect the speaker giving the second rebuttal to respond to those turns. If the second rebuttal speaker does not respond to turns, I will consider them dropped. And I don't need the summary speech to extend defense that has not been responded to. I will count defensive arguments for whatever they are worth if they are dropped.

Likes: Depth of analysis, engagement with the other side's strongest arguments.

Dislikes: Cases that are just strings of blippy half-cards, numbers thrown around without context. Don't hammer on particular numbers without telling me what precisely those numbers mean and how they specifically link to your or your opponents' advocacy. (Please don't read impact cards that say things like a two standard-deviation decrease in democracy leads to a three percent rise in infant mortality. What does that even mean?)

I've noticed that a couple of my preferences differ from those of many other judges I've encountered on the national circuit, and you should probably know that. First, and probably of greatest significance, I am far more skeptical of quantitative impacts than are many national-circuit judges. You should expect me to discount any large number that appears in an impact card unless you present evidence of each link that is logically necessary to the occurrence of that impact. That doesn't mean I won't vote on quantitative impacts -- I vote on them all the time -- but when weighing them I am unlikely to take large numbers in impact cards at face value. Correlatively, I am far more open to voting on qualitative arguments than are many national-circuit judges. But do actually make an argument; don't just give me some conclusory tag. Second, I am more open to theory arguments than are many national-circuit PF judges. But you have to actually make the argument. Don't just tell me your opponents are doing something unfair; explain why it violates something that should be a norm of debate and why the proper remedy is to drop them, disregard an argument they're making, or whatever.

I believe that public forum was designed to have a "john or sally doe" off the street come in and be a judge.  That means that speaking clearly is absolutely essential.  If I cannot understand you, I cannot weigh what you say.  I also believe that clarity is important.  Finally, I am a firm believer in decorum, that is, showing respect to your opponent.  In this age of political polarization and uncompromising politics, I believe listening to your opponent and showing a willingness to give credence to your opponents arguments is one of the best lessons of public forum debate.