The only comparison that should really matter is against yourself. Sometimes, however, we need to know where to set our sights.
For strength standards, as well as exercise and anatomy reference, exrx.net has been absolutely invaluable to this mathematician with zero formal training in biomechanics. Their page on strength standards is comprehensive and detailed, which can be helped along by their one-rep-max estimator.
T-Nation has a page on strength standards with a perspective that I like a little less for my personal use, but is still valuable.