For anyone interested but can't decide on a ship, here's a good list to look [url=http://dirkloechel.deviantart.com/art/Size-Comparison-Science-Fiction-Spaceships-398790051]here[/url].

I should also note ships like EVE's Titan's are not allowed as they have a Doomsday weapon which could probably screw over....everything. Plus it's tough to beat unless you can match or beat its Shields, Armour, etc.