With so many design styles and materials that are used to create closet systems, there certainly isn't a shortage of choice for you. This is of course great news, because despite being a really useful item to have in most rooms, you really wouldn't want a bulky closet organizer to be the focal point of a room.
Some of the best models of bedroom closet organizers are those that are custom made to fit in to the space you have available. The flat pack versions that are available are good in certain rooms, but if you have a certain area that you've set aside for a closet organizer, you're room might look better with a purpose built storage solution. Furthermore, this also allows you to use materials that already match the decor of your room and use the closet design ideas that you may already have in mind.
Some of the better closet systems I've seen are those that don't actually look like closets, but rather blend into the wall. They can even be walk in closet organizers if you need that much space to store your shoes, clothes and accessories.
Closet organizers can be made from a number of materials. These include wire, metal and wood. Some of the cheaper models may not be durable enough, so make sure that whichever material you go for it is strong enough to hold all of the items you have to store. Wooden systems are usually strong and can be made from cherry, beech, oak, maple and a few other woods. Wood is often stylish too, and can be more forgiving in terms of fitting into existing decor of rooms.
Of course it's not only the bedroom that might need a closet organizer to get rid of the clutter. They are also popular in rooms such as the garage, which is often a place to put items you don't want in the house. A storage system is ideal for keeping all of the items out of the way.
As important as a closet organizer can be, I think it's also important to have the right compartment and shelving inside. Without adequate places to store everything, you'll find that the inside of the closet will become a heap of mess with everything thrown inside! Closet organizers can come with different sized shelves and number of compartments, so it might be useful to have several compartments of differing sizes, or few compartments and more hanging space. It all depends on the items that you'll mainly be storing.