I can honestly say I would rather face the old AP nidalee than the current bruiser nidalees
Currently everything that the new nidalee does screams annoying, her build path is just like that of tank irelia, except she has an execute, an escape, and a heal, while being extremely hard to pin down or even kill. It is reminiscent of the old atmogs nid, except i feel like its a bit worse because she has a gapcloser.
Given, she needs to land a spear first before being able to do her thing, but once you are below 70% health on most champions it feels like once spear lands gives her a guaranteed kill or summoners burned. The old nidalee's spears, while extremely annoying, didnt give you the sense of pressure of impending doom the moment you get hit.
That's just one thing, but I believe overall the current nidalee feels like a huge pain to play against.