The only times I even remember hearing about Star Destroyers was in the first movie during the escape from Tatooine, and during the battle of Endor, when they were explicitly called Star Destroyers and a Super Star Destroyer.
Robzula wrote:On the whole Star Dreadnought thing, I was under the impression they added this designation because there were getting to be so many huge warships, not all of them being Star Destroyer-type, that they couldn't just lump them all under the Super Star Destroyer classification. Even before the Star Dreadnought designation, they had to change the "classic" SSD to the Executor-class Super Star Destroyer because other SSSDs came out, such as the Eclipse-class. It really just makes sense and doesn't make any other names for these ships any less canon...
The problem with your theory was that using the term Dreadnought doesn't even convey the right idea. There weren't many ships in that class historically (talking actual history, not Lucas' fantasy land). It was effectively a bridge between the Ironsides and Battleships, moving from the old movable cannons to fixed long guns. They weren't around that long, and were quickly outclassed. ISDs are obviously Destroyers, the SSD would be an analog to a Battleship or Carrier (though in reality, it was far larger than either one), and the Victory Class SD's would be similar to cruisers (since they're supposed to equal the Corvette, which would be a cruiser-style).
I got that the EU expanded on a lot of it, but I know the original history of the SSD was that it was Vader's personal ship, and being as badass as he was, he had to have an even more badass ship. The Eclipse, while retcon'd into EU (it first came out in Dark Empire, which still is the best of the SW Comics; don't agree, well, you're wrong), was an awesome ship and idea, but wasn't designed in the same mindset of the SSDs. If we're comparing it naval ships, well, it doesn't have one, per se. It's closer to a hypothetical retrofitted battleship that would house a rail gun, since it was basically just a stupid long ship that had a Death Star laser strapped on.
Which is why I don't read much into the history revisioning, because a lot of it doesn't make all that much sense. Stuff like this, or the insanely long back stories given to completely insignificant characters, add nothing to the story. The blurb could have called out the SSD and given us a lot of stuff people would recognize, instead of a name that you have to go to the Databank to check on because it sounds so wrong.
If the above post didn't offend you, you're probably reading it wrong.