which of the 8th edition armies do you think are over powered? I would answer warriors of chaos and high elves. And you?
Vampire Counts. They have many weaknesses that other armies do not, but they have some strengths that are just ridiculous (like screams). Rettile, I've never played against WoC or High Elves, but I'm curious to know why you think High Elves are OP.
Just played a nice 2500 pts game vs HE -- not overpowered, although some of the new spells are murderous. Lizardmen got manageable with the new book. Ogres are easy, so are the TKs. Don't know about vampires -- the only VC player I play against is ranked nationally, so my performance is not a good reflection. In the WoC, the only seriously broken unit sofar is the Daemon Prince. DoC -- don't have any experience there. I would say the DE with their new book seem to be fitting the bill -- based on the battle report in WD -- the witch elves have gone through a horde of the SOBU in one round of combat. They did not break them, they killed them to an orc. Not good at all, considering, these were one of our "elite" units.
why HE are OP? Maybe because of their special choiches: lions and swordmasters cost 13 pt, have tons of attacks and they usually strike first. And the phoenix? A flying monster who ALWAYS HAS a chance to come back after a painful death. It's a real problem for armies with no cannons or long ranged attacks like lizzies. HE are quick, have a fantastic magic phase, hit hard and have a good shooting phase. I don't think vampire counts are OP, though: they have some hard hitting units, but flaming attacks or searing doom can destroy monsters and blood knight. Sure their heroes and lords are OP, but the whole amy isn't. WoC have fast units, hard hitting units, tough units, a good magic phase and a powerful cannon. Add the possibility to have one or more daemon princes in the army almost for free and this is why i think they're OP
So you are asking which armies are overpowered compared to Lizardmen, or just overpowered in general? I can see how some aspects of the HE army are difficult for Lizardmen to handle, but at the end of the day, all HE are T3 troops that die to a stiff breeze. The Flamespyre Phoenix isn't any tougher than our own monsters and it has twice as much chance to die outright (1 or 2 on a D6) than to come back to life (6 on a D6), though the 50% chance of detonating can be annoying for nearby troops. Did you consider HE overpowered with their 7e book, when White Lions and Swordmasters not only struck first, but were allowed re-rolls to hit?
None of my group will consider playing as HE (even when I offer them my army to use) so I'll take your word for it.
Warriors of Chaos flat out hard counter Lizardmen, which is incredibly frustrating. Other books have an easier time of it, but I still think its the strongest one in the game by a mile: Nurgle Daemon Prince on Death and with all the toys, unkillable Tzeentch Disc BSB, multiple Core chariots, Chimera and Skullcrushers is a lot to ask to take on - and that's just one of the many extremely tough builds (Throgg Troll list, Slaanesh Cacaphonic Choir list, double Hellcannon Death lists, etc). Multiple attack models with poison, re-rolling hits and re-rolling wounds slaughter lightly armoured infantry? Who would have thought. Seriously, though, the Witch Elf horde is overrated. Yes, it will kill things like the above with ease - but it will also bounce off a lot of things too; as a frenzied unit its incredibly easy to redirect; and even with a 5++ ward they are still T3 Elves: any template weapon will cut them down, let alone things like Dwellers. The Dark Elf book is a strong and solid one, but I don't think it quite qualifies for OP. That should be reserved for crap like Daemon Princes or Skullcannons (although I think you can argue Warlocks fit that definition...).
I visit a lot of forums. People who played against the Banner of the World Dragon consider High Elves overpowered. Otherwise they do not. Admittedly phoenixes are hard for artillery-free armies like ours to handle.