TDM-Modpack is the way to go. Some standout special characteristics noted from turn 60 in my really big game :

1) Goes to Brotherly - Eee, Phong, Toltayan, Colonials, Narn, Toron
2) Goes to Murderous - Sallegra, Drushocka, Krill, Xichung
3) Long term winners - Amonkrie, Sergetti, Eee, Abbidon, Pyrochette, Cryslonite, Sallegra, Piundan
4) Long term losers - Ukra Tal, Phong, Toron, Cue Cappa, Narn, XiChung, Colonials, Krill
5) Tough early opponent - Rage
6) Long term opponent, does lots of research - Amonkrie, Pyrochette, Toltayan, Toron, Eee, Drushocka, Cryslonite
7) Long term opponent - treaty makers Drushocka, Krill, Colonials, Toron, Sallegra, Phong, Ukra Tal
8) Build lots of units - Piundan, Colonials, Xi Chung, Narn, Rage, Toron, Pyrochette, Sergetti
9) Few units, relies on ships - Cryslonite, Krill, Phong, Ukra Tal, Abbidon

Perhaps the Modpack designers would care to comment here ?