To Do software

I'm looking at different To Do software. I primarily am going to compare Toodledo, Remember The Milk, and Google Tasks. First impressions: Toodledo has endless features but seems spartan; RTM is very nice looking; and Google Tasks is too primitive but is definitely simple enough. These are all "cloud" packages. I think this will be the way I'll go because I want access anywhere I do not want to worry about my computer crashing and losing all of my data. I am mindful of the security risk with cloud computing.