1669 and 1678 crowns are very under-rated. They are at least as rare as 1665 and 1675, the 1669 probably more so. I've seen/heard about only 5 or 6 1669's in 40 years of collecting crowns, and about 10-12 1678's. I've only ever seen/heard of two 1669's above F.
So based on the images and the distinguishing features between what I have described as type I and type II- And seriously these distinctions will likely be further delineated should there be collector interest- your first and fifth coins are Type II; the second and fourth are Type I; the third coin is alittle challenging based on the image as the central details are not quite as well defined. Please do not take that as a criticism of the image. I see that one as a type II.
What is truly amazing... at least in my view... is that there has not been a further study of the die varieties associated with this coin that has either been done or found its way to the mainstream for collectors to appreciate.