I personally prefer well rounded training!
Basically, I am not particularly big or strong, and although i would like huge numbers on lifts, its not the be-all and end-all for me. I am more concerned with staying healthy and strong as i get older and keeping some sort of reasonable shape and a lowish body fat.
I think if you are looking to compete, or you are a recreational power lifter then specialised training is a great idea, after all getting a big number on the big 3 is gonna keep you with a fairly good level of strength and health.
It obviously very personal to your goals, but I will never be a powerlifter and dont really want to be, so I am not going to train like that.
That being said I can definitely see the benefit of doing specialised routines and I can totally see why most people on this board would train like that as most are intemediate to advanced with their lifts and/or experience, but I think if you are beginner to intemediate in your experience and/or lifts then just general training is going to work wonders...
just my 2p worth