At the risk of looking like a nerd...

I've made a sheet of three different drinks I have the tubs for at home, and shared it in a spreadsheet which you can view here:

Update: Have added Hammer Perpetuem and Gu2O to this.

http://spreadsheets.google.com/pub?key=pUcxuWiLA...

At the moment this compares Endura, Gatorade & Balance Endurance (Balance Endurance Elite Fuel Supply Restore Energy Supply if you want the full name!). Would like to add some Hammer products and anything else you can recommend to this to compare. Please PM or post the ingredients/nutrition from any pack you have as this is annoyingly missing from the Hammer site for example.