^
I disagree, I think Capital ships can be very useful if used correctly, but since I haven't used them before you are probably a little bit more knowledgable. I know that Borg uses them sometimes, and anything Borg uses must be effective!
Also, you are right that dreadnaughts may not be that good. I think Titans and up will be awesome though.
If used correctly. Either bloody lucky catching someone's fighters, recyclers, Fleet Carriers and carriers (note,
Only Fighters, recyclers, Fleet Carriers, and carriers. And not in huge amounts.) snoozing in empty space, or the roles I will mention later.
But most of the fleets that I've seen from experienced players (Eey, Borg, CoRM, etc.) are mostly cruiser and heavy cruiser dominated, combined with fighters, corvettes, and destroyers as meat shields, and Carriers and Fleet Carriers to ferry them. Bombers and Heavy bombers are for light support, and Recyclers for picking up debris fast. It is true that they occasionally will include Dreadnoughts, Titans, and Levis, but the majority of the fleet strength will be in the Fighters, Cruisers, and Heavy Cruisers.
Dreadnoughts are used to hold UCs, and Levis are used to give armor bonus and/or take weakly defended bases (1 p-ring or less). Death Stars are used for intimidation of weaker players.
Well, from my experience, Titans are the worst capital ship. They have the base 1 movement speed, and no armor bonus. Dreadnoughts are at least somewhat fast, and Levis and Death Stars give armor bonuses.