For those interested, I have added a Physical Fitness category to assemble some of our better fitness posts.
Here is all you need to know about the types of deadlifts: Deadlifts: Which Type is Best For You?
I only do the Conventional, because I do deads mainly to sturdy-up my "posterior chain," ie neck to back to calf to ankle. It has done a lot for my posture and my overall power. See recent pic of me, below (actually, not me but I self-identify as that so you have to accept it - and if you do not you may not use my bathroom):