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?