I can tell you what I hated most about Kyoryuger; the pentablade. To me; it spat in Kyoryugreen's face. "Hey green, you know how your mech can attach to a body one to become a sword. Well so can blue's. It can turn into a shield or a sword...so your mech is pretty useless.

I also hated how the blue red pink configuration is the 'default'. It felt like it was spiting in both green and black's face. Had they simply called it Kyuryuzin Samba, I wouldn't have had as much of a problem