Tell us your profession,year of experience,country (if you don't mind)
There are no right or wrong answers to this question. Fell free to share your honest opinion.
If there's an organisation where the designers and developers work side by side with the customers to figure out what they actually need and get to build a well structured system that solves everyone's problems in the way it's intended to... well it's clearly rarer than hen's teeth.
For a bonus, as a semi freelance journalist/writer, I'd say the aspect I dislike most with that field is how bad most people in the industry are at actually researching the stories they're writing about. You could tell some of the tech press that the next Apple device is powered by a legion of hamsters running on tiny treadmills, and I'd wager you'd somehow see a few of them take it as gospel.
Really hate it because it's too close to business stakeholders. It's rare to find a niche that is called Big Data Developer.
The worst thing about my profession is the historical ignorance, willful dishonesty, egotism and shear cowardice of individuals who have far too much influence over the rest of society to be any of these things.
Guess what I do?
On a side note, I also hate the people who play the game - focusing on politics to get ahead resulting in them eventually being inept in their leadership positions.
And in general the state of management/leadership training as well as performance evaluations are abysmal.