Fantasy, what are your reasons for only wanting to do one type? There is a reason that people stack, and it's because each AS in the stack does different things.
If you are concerned about limp dick, add some test. Deca is good for the joints, and is pretty damn anabolic. A good first cycle could have low dose test/deca and it would do wonders for your physique. Same for a test/eq cycle.
Also, one main reason people like orals is that they kick in relatively soon as compared to injectables.
If you only want to do one type, fine, but I think you would not only notice better gains, but be happier overall with a stack. I can understand you not wanting to take 4+ different ones, but to limit yourself to just one is only limiting your results.
As for the zits, good luck! It is a major problem with a ton of people.