Agreed Pivotal one is great. I've tried several others and it's the simplest and easiest.
I've been using one called GravityDev at my job and it's nice ( although my team is using it like a PMO tracker despite my best efforts... ) but Pivotal is way simpler and nicer to use.
We've recently moved from Pivotal to GreenHopper (Jira) and every single engineer wants to go back to Pivotal. We've given GreenHopper a couple of months to give it a fair chance, and in every way it's clunkier and more confusing than Pivotal.
Just curious, what were the reasons you decided to move away from Pivotal? We're looking for a new project management system and JIRA is one we've been looking at, but on first look, it does seem like information overload.
I've been using one called GravityDev at my job and it's nice ( although my team is using it like a PMO tracker despite my best efforts... ) but Pivotal is way simpler and nicer to use.
Though I have only used it in small teams.