Vasari capital ships are REALLY strong. A friend and I tried doing a FULL All out war... We both had 1500 supply used a single battle set in a SUN.
I had 5 Capital Ships (1 Akkan, 1 Kol, 1 Sova, 1 Dunov, 1 Marza). 200 Javalis. 25 Kodiaks. 60 Percherons w/ bombers, 40 Cobalts. 30 Hoshikos, 30 Cielo Command Cruisers, 40 Gardas.
He on the other hand had 12 Capital Ships. And a mixture of units more or less the Vasari equivalent of mine.
We let the AI do everything. My TEC fleet was wiped out. He suffered 3 capital ships lost, and several units. It was a rout. In ratio I guess for every 5 lost TEC unit, he suffered 1 lost Vasari Unit.
Gamewise I would have won since I had to wait an additional 30 minutes for him to fully form his fleet. But doing a frontal war with the Vasari is just plain suicide.