Which races expand the most?

from what I've heard, the Torians also have a tendency to expand really fast (and eventually ruin thier economy with low class planets).

The Torrians spread like a plague if you don't deal with them quickly thier influence will start taking away your planets.

I find that the Drengin tend to switch from colony ships to military vessels before most everyone else, which means that they end up with far less planets at the end of the colony rush; more guns, though. They almost always have many, many more guns than I do.

Its the Arceans / torian axis of expansion, but it also depends a lot on starting location as to which of these two expands the most.

Torians and the Altarian expand a lot to me. The Torians expand in the colony rush, but the Altarian war so much they obtain planets from the other races. Coming in next would have to be the Arcean and the Drengin, both because of warring.

Altarian and Arcean expand most for me,

between the two they usually take up half a gigantic universe when im playing. Dregin dont expand that much for me, they always have very strong ships though, so they usually gain alot of territory after a while. Terrans really dont do much, they sit there and dont go war with anyone, but eventually gain alot of planets as nearly everyone surrenders to them. The rest of the are all pretty much the same.

Though like FROOKIE said, really does depend on starting location. I usually start about 10 times before i get decent planet bonuses and not slap bang in the middle of civs who are going to declare war on me stright away.