It's interesting that everyone's saying TR's original. They have some level of... relatable-ness (heil grammatik), wanting their boss back, but in essence they're a poke-mob with the insignificant (from the PCs perspective) goal of exploiting pokemon for money. Giovanni is an awesome boss, I'll admit, but some of his lines made him seem rather underwhelming, and there was no real end goal. Archie/Maxie are misguided extremists and Cyrus is, as Kefka so wonderfully puts it, "Just another sadist with a god complex". Cyrus is certainly the most threatening of the four, and Giovanni seems to have a sense of honor. I don't know who I prefer. I could forget about Arch and Max, despite how awesome their hideouts were.