I think that both have their place in bodybuilding, but I would learn to dbol far more often than anadrol. I have found through my own personal experince that anadrol is just as liver toxic as it is touted to be by the bro's online. My labs have shown dramatic liver enzyme elevation, in just a few weeks. When I use drol, it is only for short bursts. On the other hand, I can tollerate dbol much more easily and will run a moderate dose for 6 to 8 wks with no major issues. Liver values will be elevated and it will effect my cholesterol, but this is to be expected. Because of this, I don't use orals as often as I used to. I love dbol but I may only run it once every 12-15 months. I feel that the longer you can use a drug, the more likely you are going to be able to make lasting gains with it. I'd much prefer to take 25mg dbol for 8 wks than take 50mg for 4 wks. 4 wks just isnt a lot of time to make lasting muscle gains. I also belive in synergy between compounds. If I were to run the classic test/deca/dbol, the test isn't going to be built up to supraphysiological levels for a few wks. The deca will take longer. If I come off the dbol after 4 wks, there really wasn't a lot of time to get the benefits of combining all 3 compounds together. 

I've noticed that dbol gives me a better sense of well being and makes me feel good when I lift. I get great pumps and feel powerful in the gym. Rarely, it can effect my appetite to the point that I need to cut it out. In the last few years, I've taken to using injectable dbol. It has no effect on my appetite and the effect seems a little stronger than the oral, mg for mg. On the other hand, drol will kill my appeitite, within a couple wks. If I can't eat, I can't grow. Its also very common to experience headaches on drol. I have gotten them, even when my BP is fine. These reasons are enough to steer me away from drol. 

Where would I consider adding it? I may consider adding it on a diet for a few wks to maintain fullness and increase strength. If there is one thing drol does well, it will make you very strong. So strong, that I personally know several people who have torn a muscle while on it. You have to be very careful with the strength developed on steroids and that especially goes for drol. Even when dieting, I tend not to use drol, as I am a big fan of EQ. Both with quickly increase your RBC. Mine gets high, fast enough on EQ. I don't need to thicken my blood any faster by adding drol. 

In short, I limit my use of orals. They are much more toxic than injectables. When I do use one of the two, I will most likely lean towards dbol, 9 out of 10 times. If you do use drol, just go with 50mg, one tab a day. That will be plenty to evoke a powerful effect in conjunction with a test cycle.