Jason Klass has some suggestions too out there, search for his websites and videos.
I believe that many make alcohol stoves overly complicated for virtually no benefit.
A simple tealight is ultra-efficient, ultra easy, and ultra cheap with the SP600, you dont need to measure fuel you can see how much you put in, and there is nothing lighter or easier, no priming, etc.
Truth be told, the windscreen design and flame coverage has the biggest effect on efficiency with all alcohol stoves.
After trying a bunch of others with a 1.3L pot, I came to the same conclusion. A larger tealight will boil 4 cups of water in my evernew 1.3 in 8.5 minutes, on 1.1oz fuel, and thats outside, not in the kitchen. It will do 2 cups on ...0.6 oz also, in about 5 min.
Supercat could not even bring the 4cups water to boil in the same amount of time, on the fuel it would hold.
One trick you use with tealights is simply to put a bent piece of metal in it to conduct more heat and speed up the burn. You can make it faster if you want, at the expense of efficiency sometimes. I use a bent piece in my larger tealight , it cuts about 3.5 minutes off the boil time for 4 cups.