I voted for test and tren. If you're in your 20's dont bother with GH uless you're prepping for a show. As far as the tren, 450 is a lot, but if you have experience then go ahead with what works for you. Remember though, 450 of acetate is about as potent as 600 of enan. The shorter ester gives you more bang for your buck. Also, you might need ED shots of acetate depending on how the sides hit you so keep that in mind.
For the life of me I never understood how tren and winstrol came to be used together. Yes, it makes your muscles very very hard and dense, but tren makes you very very strong and winny takes a giant dump on your joints. Personally, I don't have the discipline to train light if I have the strength to go heavier, which when on tren and winny translates in to lots of joint pain. I dont use winny anymore. I've fallen in love all over again, and her name is Masteron...
(god that was gay...sorry dudes) Masteron is good stuff though if used properly. Has similar usage indications as winstrol (dry gains, helps density and attaining that "grainy" appearance), and has the added benefit of binding to SHBG and is also less harsh on lipids and liver.