Homemade Golden Ginger Ale
If you want a stronger flavor, and more bite, add more ginger.  I make a dark, spicy ginger beer.  I do not use yeast, but rather force carbonate.  I don't know the exact quantities of ingredients used, I just make to taste each time.  

Below is my ingredient list:


Fresh grated ginger
Peppercorns
Molasses
Cane sugar
Fresh squeezed lemon (added after the mixture has cooled)


Molasses: Give the brew a thicker taste and darker caramel color, leave it out if you want it milder.

Ginger: Fresh ginger is key, don't use the powdered stuff. The more ginger you add, the spicier and more bitter it will be.  You may need to increase the sugar content a bit too.    

Lemon: This adds a nice zing.

Peppercorns: It may sound a little bit odd, but the peppercorns go very nicely with the ginger and lemon.  Just add these to taste when you throw in the ginger.

I've also experimented with different types of sugars like Maple Syrup and Palm Sugar.  Those each impart different flavors and may be worth trying too.