They're all about the size of the Daedalus. The destroyer just has more weapons, so its slightly slower and has less defense than the powerful ships. The carrier has more room for fighter ships and less weapons.
well, well well looks good, i like it, but ähm shouldnt a battlecruiser be bigger than a destroyer, i think the only bad thing is the scale because in the navy i think carriers are the biggest ships but it looks good
To my knowledge the only ships seen in stargate so far are the Prometheus, Daedalus, Odyssey, Korelov, Apollo and the Phoenix/ General Hammond, and none of those were named after Goa'uld. The Korelov and Hammond were named after people.
Naming after Greek gods is a military thing i suppose.