User blog comment:MasterBroccoli/Spacing in infoboxes/@comment-5157002-20180614174629

I vote for number one. I think it's easier to match a parameter to its value while editing (if all the parameter lines are the same length, it's harder to spot the one you want, and you can easily edit the wrong line).

Also, it's a lot less work when you add or remove a parameter, in cases where that parameter happens to be the longest one in the template - in version one, you only have to edit one line, while in version two, you have to edit every single line in the box.

I also think it's more aesthetically pleasing in the editor.