One of the "bibles" of aeronautical engineering, Torenbeek, dedicates a couple of pages on that very subject. It even shows drawings from two competing groups at Boeing for what became the 737. You can see a 737 with tail mounted engines in there (looks odd).
What Torenbeek says is that there is no clear cut answer. In some cases, the fuselage mounted engine configuration is best, in others, the wing mounted engine configuration wins. So this question is evaluated on a case by case basis.
It seems that the wing mounted configuration is always lighter (because the weight of the engine doesn't need to be carried by the fuselage), except for smaller aircraft where the taller landing gear starts offsetting the weight gain.
Generally speaking, the ground clearance with the engine needed to prevent gravel being sucked in is a distance that is not proportional to the size of the aircraft. You would need a couple of feet for a small business jet, and four or five feet would be ok for an aircraft five time its weight. So you need taller landing gear, proportionally, with smaller jets.
That's one of those factors that makes fuselage mounted engines preferable for all business jets, and most small regional jets.
As far as the main drawback of T-tails, what some of you are referring to is called "deep stall" where the horizontal tail is getting "stuck" in the aerodynamic wake of the main wing when it is stalled.
The BAC1-11 crash in London awhile back claimed the life of my uncle. I was surprised to realize that as I was studying the subject awhile ago during my engineering degree.
Deep stall is a situation from which one cannot recover. The pilot can move his stick or yoke all he wants, the aircraft won't get out of it. Most airliners are protecting themselves from it by installing stick-pushers that prevent the aircraft from stalling in the first place. Smaller business jet (such as Learjets) are installing ventral fins under the tail.
Off my soapboax, I don't want to be too boring with this stuff
(I design small jets for a living)