I am a little late to the thread, but have some more to add.
First, comparing the basic strategies above. With the batteries in a string like the earlier posts, the positive and negative need to come off of opposite ends. When you do this, it helps keep the load equal among the batteries. Also, the length of wires does not matter at all. This is because if you add up the total (positive and negative) lengths, for each battery will be exactly the same as all the other batteries. This is why the positive and negative need to be opposite ends. However, the center battery is still not going to be exactly loaded as the outside batteries. With only a few batteries not a big deal, but as you add more it becomes significant. Note that you need a fuse at each battery. If the lynx distributor is remote, you still need a fuse at the terminals. If 2 or 3 batteries are right next to each other, one fuse will work for both. As you have them arranged then, you would need 2 fuses.
The other technique will do the best job at keeping all the batteries the same, however, in this case the cables do need to all be the same length. An inch or few is no big deal, but with 6 batteries in 2 locations it is easy to have a several foot difference, and that is not ok. ABYC requires fusing close to the batteries (within a few inches), so with this method, the lynx distributor needs to be close to the batteries. Or forgo the distributor and use those fuses that mount on the battery terminals. You will need a total of 6 fuses, one for each battery.
There is a third, way to connect them, that uses less wire, less connections to the buss bar, but is more complex and harder to explain. First, connect 2 batteries together like the first way, with positive coming off one battery, and negative off the other. Then do the same for the other 2 pairs of batteries. Now, you only have a total of 3 batteries with the longer wire runs to the lynx distributor. These long wires need to all be the same length. You still need fuses at the batteries, but only 3 of them instead of 6. And you only need one lynx distributor, and less wire. This method works every bit as well as the second way, and better that the first way.