Another issue: as discussed in this thread. Early monster design for paragon and especially epic tier play failed to consider just how many options 4e characters have as they advance in level. This resulted in stun-locks and other problems for DMs who thought they were presenting a challenge but in fact - it really wasn't. MM3 and beyond has reconfiggered the math a bit, and more importantly introduced monsters that supposedly don't suffer from these issues (such as a new approach to solos for example as they are the most prone to lockdown).
As Wik's game is in epic levels I can certainly see how this might contribute to the issue he's expressing (the feeling that players just have too much control over the actions of your monsters).
As Wik's game is in epic levels I can certainly see how this might contribute to the issue he's expressing (the feeling that players just have too much control over the actions of your monsters).