I am posting this sight unseen (or rather, hearing unheard), because I haven't yet heard the Podcast. I did want to put this up first, and then discover how much in sync I might have with the Podcast and some of you out there.
EDIT: Just now listening to the Podcast. Julian's "Tel Aviv" edition of the Ani-manga! Hey, it's the Israeli version of DBZ!
Considering the fact that we're getting the whole package at Otakon, and not just Hironobu Kageyama or Hiroshi Kitadani, I would love to hear a good variety of songs from all of JAM Project and its members.
Things I definitely want to hear - "Nageki No Rosario" from Gravion. Possibly also "Soul Gravion" which is the song that plays during the combining scenes in Gravion. I know JAM Project did a lot of songs for giant robot shows, so I'm sure people will be good to get their giant robot on. Of course, stuff like "Cha-La Head Cha-La" and "We Are" should be included for Hironobu Kageyama's and Hiroshi Kitadani's sake, respectively.
As far as Dragon Ball Z songs go, it's entirely possible that lots of these people at Otakon will be hearing a lot of these insert and "inspired by" songs from the Hit Song Collections for the first time. Off the top of my head, the set will most likely include:
"Aitsu Wa Son Goku"
"Hikari No Tabi"
(maybe) "Ougon No Compasu"
"Unmei No Hi"
"Mind Power ~Ki~"
And to make Meri squee with glee, "SpacePeople DBZ".

I'd love to hear him do any (or all) of the Budoukai video game songs he's done as well.
From the Movie Ending Theme songs, I'd love to hear:
"Marugoto" (Movie 3)
"Burning Fight" (Movie

"Dragon Power Mugendai" (Movie 11)
"Zaikyou Wa No Fusion" (Movie 12)
EDIT: After hearing the podcast, and re-ordering my songs, this would be my set-list:
Re-ordering some of the songs in my previous post, my own set list would be:
1 - Cha-La Head-Cha-La
2 - Aitsu Wa Son Goku
3 - Burning Fight (DBZ Movie 8 ED)
4 - Mind Power ~Ki~
5 - Hikari No Tabi
6 - Ougon No Compasu
7 - Unmei No Hi
8 - SpacePeople DBZ
9 - Marugoto
10 - Dragon Power Mugendai
11 - Zaikyou Wa No Fusion
12 - Ore wa Tokoton Tomaranai!! (DBZ Budoukai 3 Theme)
I would want to kick off the set with Cha-La Head-Cha-La, not end the set. Give the crowd something that they'd mark out for immediately. I'd send them home happy with the Budoukai 3 theme.
Ideally I'd like to hear a good number of DBZ songs, but I'd love to hear some great giant robot songs that JAM Project is known for. Giant robot songs tend to make people all fired up, so I think the crowd at Otakon will be wired beyond belief during and after the JAM Project concert.