Robocode Guide vie explanation of a top robot

Hmm, so I'm fine with using a robot other than Gilgalad since it will mean I have a better perspective on what someone who didn't write the robot would need explained, but it would also make the project take longer. I find Diamond fairly easy to understand, but I was thinking of a tutorial for 1v1 since I haven't tried melee yet, and that would mean there would be a lot of "melee code, ignore this:" going on. I'm willing to put quite a bit of time into this, so I'm more interested in what people think the best bot for a detailed explanation is? How hard is it to understand Gilgalad? Also, this will probably mean that there will be a bunch of new robots based on the one for which the guide is made. How efficient are the other top robots, and how important should speed be? If I did use Gilgalad, perhaps I should make modifications such as using Rednaxela's kd-Tree?

Quick note, I'd tend to advise against using my kd-Tree (espescially the "3rd gen' one) in a bot which is meant for use in such a guide as is being discussed here, especially if the guide wishes to touch on what the kd-Tree itself does. While I tried to keep readability reasonable, there are plenty of places where I sacrificed simplicity for raw performance.

For a bot used for this type of purpose, it might be fine to go with a simple linear k-NN search even. For 35 round battles, it's normally not too slow if implemented well, and it a tiny fraction of the amount of code to implement a kd-tree.