The two choices are not mutually exclusive and are totally unrelated. It's like asking if you'd like to drive a red car or if you'd rather drive a Ford...
The terrible, awful, mind-consuming anxiety of being transgender can be cured completely through GCS. Nearly every post-op will tell you that the first thing on their mind when they came out of surgery was an incredible sense of calm and well-being in their head.
Having been there myself, I cannot believe the change in my brain from pre-op to post-op. GCS is not nearly so much as what's in your panties as it is what's in your brain. I can now sit and think of nothing if I want to, I am not obsessed with trans issues any longer. After a life time of anxiety over gender, I am now just another woman, doing what women do.
My body is also changing more since GCS. I'm a very happy girl.
So, to answer your question, I got both after GCS. I feel wonderful and I'm looking better every day...