Three ring albums are and great binding option if you want to be able to add and remove layouts from you albums quickly and with ease. They come in many colors and numerous sizes. Some styles have metal corner protectors and a spine nameplate so your album title shows when its on the shelf. If the ring is a "D" shaped ring it will aid in the turning of pages and pages lay more flat in the album when open.
Hiller and We R Albums are from the same manufacturer. The Hiller brand are the older version that many veteran scrapbookers started with.
KMA (Keeping Memories Alive) brand albums were designed by Marielen Christsen, the person who started scrapbook awareness over 25 years ago and the founder of Scrapbooks.com. Scrapbook.com carries KMA albums because scrapbookers who started scrapbooking years ago still use these albums to fill there album needs (they will match the albums they have purchased for years, too).