I think a lot of DD classes rolled healers to get shorter queues. So in order to deal with the longer wait times on my scholar I started gearing up a paladin. I find the pressure on the tank is about equal to that on the healer, it's just different. Without amazing gear yet I find pulling and clearing trash a lot more stressful as the tank, but most boss fights are pretty relaxing.

I'm glad I already know the zones and bosses though, I admire any tanks that have the courage to walk into a zone completely blind with elitists in a group.