Having used FogBugz, JIRA, and RedMine, as a developer, my order of preference is:
1 - fogbugz
2 - redmine
3 - jira
I actually found myself pretty comfortable with Redmine's UI and its integrated wiki. Fogbugz was very easy for me to use, but I last used it ~7 years ago.
It may be possible to get JIRA configured so it works nicely, but in general I find I am always running into some kind of workflow issues. It does work, it just seems to take more effort and sometimes me or my teammates come up with ways to work around things that are broken or just not smooth and that we don't have access rights to debug or fix.
1 - fogbugz
2 - redmine
3 - jira
I actually found myself pretty comfortable with Redmine's UI and its integrated wiki. Fogbugz was very easy for me to use, but I last used it ~7 years ago.
It may be possible to get JIRA configured so it works nicely, but in general I find I am always running into some kind of workflow issues. It does work, it just seems to take more effort and sometimes me or my teammates come up with ways to work around things that are broken or just not smooth and that we don't have access rights to debug or fix.