Anecdotal Evidence for Why I Dislike Critical Hits

I have been listening to a new podcast today and in the newest episode they provide evidence for why I don't like critical hits.

Critical hits rolled by the player = death of a monster they were probably going to kill anyway

Critical hits rolled by the GM = death of a player character

Note that these guys are not making my argument, they are merely discussing what happened in their actual game (Pathfinder, in this case).