This one is probably the most comprehensive - http://www.biblesupp...ble-atlas-maps/
It is formatted for the Windows version of eSword. It has 100+ maps. I've almost always found what I've been looking for when using it.
Not sure about the "blurry" factor. I do know this: most of the graphics modules are relatively small when compared to what you can find on the internet. On average, the above module's maps are about 150k each (really round number there...). These maps are useful for personal study, but may not be helpful if you are attempting to copy/paste into a powerpoint for large scale viewing.