This works BUT I don't know what choice the user made. It could be every option (aaa, bbb, ccc, ddd, ...) and I just want to display the text of the option the user made.
If multiple choices are available, then its probably easiest to work in PHP and then provide the template with the phrases.
Loop thorough {$user.Profile.custom_fields.Test1} and create phrases using user_field_choice.Test1_?