Pretty simple, you tell me, what is easier to read:
When you're reading it, think about how your eye moves. With the first example, it's - - - etc. With the second example, it's Z Z Z etc; meaning your eye moves in a Z pattern. With the Z pattern your eye has to think more about the next point of information, than with the first. The closer a piece of information is to the last piece of information the easier it is to use. The more compact information is the better, you can always add space, but some information will only compact so far. For example, I can add more space like this, but it's still shorter in length if your measure the longest end to example 2: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
I'm sure someone will post research or something, might even say I'm wrong, but fact is the my logic is simple enough that I understand it, it makes sense to me, and I don't need fancy report to tell me that it's right, or wrong... because I'm guessing that fancy report won't make sense, and is just a sample of data based on the structure of the test given...
So, what do you think?