Remember The Milk has the tag line above. If is true can be disputed but on the other hand, what works for you is the best way. Here is a quote from the website:
Managing tasks is generally not a fun way to spend your time. We created Remember The Milk so that you no longer have to write your to-do lists on sticky notes, whiteboards, random scraps of paper, or the back of your hand. Remember The Milk makes managing tasks an enjoyable experience.

I have decided to try RTM, it looks promising. And if it makes managing tasks enjoyable it is a great bonus.