a fairly long story about how the gnome project came to use bugzilla.

my biggest problem with bugzilla was always that the web interface is crufty, and the code is even worse. feature-wise, it's okay (although it assumes a workflow with a verification-that-bug-is-fixed step that is absent from many, if not most, open source projects).

scarab has always seemed like the most likely contender for unseating bugzilla in popularity, except for it being written in java (still a hurdle for wide adoption, i think).