Decide what you want from your computer. Do you want a traditional style dive computer or a watch style. What type of diving are you doing? This can also help you decide. Do you need transmitters with up to 3 gases or just something to help you manage your diving etc.
Another interesting point as far as I've read. Most dive computers are actually made by the same company (Seiko I think) so... I guess it doesn't really matter on the brand. The computers are just made for the different companies with slightly different features and algorithms so I guess choose one that looks good to you or whatever works for the diving you are doing.
If you want conservative choose something conservative, if you want liberal choose something liberal.
Another interesting point as far as I've read. Most dive computers are actually made by the same company (Seiko I think) so... I guess it doesn't really matter on the brand. The computers are just made for the different companies with slightly different features and algorithms so I guess choose one that looks good to you or whatever works for the diving you are doing.
If you want conservative choose something conservative, if you want liberal choose something liberal.