I posted that I believe the squat is superior to the deadlift. Here is why.
I perform both the full squat and sumo/conventional deadlifts and find the squat to be the most taxing, most intense and one you truly have to be focused for.
You take the bar off the rack, its on your shoulders for the entire set. You are bearing the weight from start to finish of an entire set. I begin to sweat before even doing my first rep. Then you go down and must come back up with all that weight! I feel there is a greater workload during not only the positive phase of the lift but also the negative. I also think that the squat has good rewards in upper body strength also. Usually I feel muscle soreness in much of my upper body afterwards, primarily the shoulders and back.
On the deadlift however, usually the protocol is to ground the weight between reps to keep form in check, where there is no weight bearing. The same which cannot be done with a squat. Also, on the negative phase, the bar may be virtually dropped or completely dropped - a good idea when handling substantial weight. So on a deadlift you must only come up.
To me nothing is as draining as a long set of heavy full squats. However the deadlift is not far behind by any means.
I would love to see some sort of scientific study between the two if somebody could submit something ? It would be great to see what science had to say on the matter. | 
