This is a very individual thing, so we can all tell you what we do, but it's not clear that's going to have any relevance for you. My guess for you -- you're young, lean and obviously already have a solid muscular physique (rawr!), so I'd bet it's more about calories, timing, and number of meals for you than any particular tweaking of protein/carb/fat ratios.
I think calories and timing are the primary knobs for most guys who aren't couch potatoes. That's true for me too. I've tweaked protein/carb/fat ratios and run experiments for at least a decade, and those ratios pale in comparison to total calories and timing of meals.
What are my current ratios? Given that I realized they aren't all that important, I just try to eat a balanced diet. 40/40/20 is a good baseline start (40% calories from carbs, 40% from protein, 20% from fats), but like I said, those ratios didn't really matter to me.
That said, I'm sure there's nutritionists here who could shed a lot more light on this topic.