As Rob said RTs and Styles are sort of different animals.
In the RT picker are you aware that columns can be sorted like any spread sheet? Have you tried the filter? To me finding a RT is fairly straight forward. Finding a style has been a little tougher that's why we asked for a good filter. have you tried the filter in the style picker?Did you know that in the BIAB style picker you can click on the "EDIT" button and start to build your own Styles list? The original intent was for self created styles however if you use an existing *.sty file the entry will be removed from the PG created list. In your list you can fill in all of the blanks and give it a description that is meaning full to you.In time that's probably the place you'll go. Each time you find something that appeals to you add it to your list.
Open the style picker click on edit then click on help. There's also another easier way however you don't get the beauty of editting the descriptions. If you find a style that you want to remember click on "add Favorite" It'll now add this style to the Favorites category at the top of the style picker. It'll also add an "F" adjacent to the style in the style picker.