The twins are exactly that. Both 14 inches. Both have about 14 tops. They are the slowest plant to pop pistols- and will most likely be the plants that live the longest in this cycle.
Those plants look great and healthy; the ladies with 3 or 4 more weeks of veg look close to the others. It looks like a well balanced tent; you will know about it in week 3 of the flower. :)