It's hard to be very specific here - since I obviously don't remember the exact problems I have encountered.

However here are two examples[0][1] of the sort of problems I mean. Both are non-issues with pacman, I can simply choose to ignore dependencies entirely and fix the problem.

Also I just realized I wrote "apt" before, but I really meant the packaging system itself, not just apt. Which also begs the question, why are there at least 4 seperate programs for package management (apt, apt-get, aptitude, dpkg)?

[0] https://askubuntu.com/questions/612593/

[1] https://askubuntu.com/questions/223237/