I use all tires, depending on the way the car is setup (HP, Weight, Torque, etc...). However, I will agree that sims are the best tire to not only teach you good control, but also because of the slightly altered (more realistic) physics system.... Learn to drift well using sim tires and low HP... You will learn better control, because you are forced to use good technique to drift....
You can drift the AWD's better than the RWD's because AWD's are much easier to drift..... I have always been primarily a FR drifter. However, I decided to put together an AWD vid. So I bought all the cars the first day (24 cars), and tuned them. Then the second day I did all the drifting. Then I spent quite some time on the editing, making sure it was just right.... So you can see how easy it is, if it only took me a day to get over 60 clips..... It took me quite a while to reach 60 clips drifting FR's, and MR's.....
As for AWD's.... As you can see by watching the vid in my sig (Countersteer Zero) I am an avid AWD drifter, as well as FR, MR, RR, and even FF.... I use anywhere from 300hp to 550hp on sims (AWD), most of the time.... Also, I use a VCD setting of either 40% or 50%, for the true AWD experience... I find that it allows for much bigger angles, with minimal use of countersteering....