So I wanted to see what other people think about this matter

Let me clarify a few things

By usefull cooldowns I mean every ability that has a longer cooldown than the global cooldown
Doesnt matter if is a damage increase ability, healing or tanking one or just a defensive one (Ice block lets say)

In other words which class has the best "oh shit" or "Holy Crap" buttons to press ;-)

Just vote for the class that you think has the most usefull cooldowns for the role the class/spec is meant to have

Feel free to add your reasoning and/or comments