i can do either 600 mg cypanate and 300 mg deca     a week  or  600 cyponate once a week and  100 mg suspension eod  which is better? 
Your question implies that you know nothing about the AAS in question.
Cypionate is Testosterone.  Deca is a potent anabolic.
Suspension is Testosterone.
So of course you would be better of running Test with an anabolic over running a higher dosage of Testosterone.
It's questions like this that make me truly question whether you know anything about AAS.
Read the sticky at the top of this page, as I think you are completely lost.   

DIV