It is said that milligram for milligram Primobolan and winstrol are as potent if not more potent than Anadrol. But, Anadrol has it's place in a great steroid stack, It gives you unbelieveable strength and if you come off an Anadrol stack correctly you I personally believe you will have more muscular gains than you would get from any other steroid. Also, Anadrol is great precontest when you are trying to conserve as much muscle as possible while using weight loss and metabolism related drugs. As for Deca being better, I think they should be used together along with some sort of Test. On a 12 week cycle you only use the Anadrol for 6 weeks then you replace it with Insulin and I personally like taking growth throughout the year.