you. this is a really extensive list that will give you a lot of options for making your tea.
there are plenty of machines that you can pick from, and you should pick the one that you think you can use the most. someone who wants to be able to have a much nicer cup of tea has to pick out a device that they think they can use every day.
have a look at every device on the list, and figure out which one will work for you. you have to balance when they can offer you in terms of features as opposed to the size.
you will pick based on size 