In my opinion, it's important to figure out how you want to wear the bag. I knew right away that I wanted a backpack. I hate when I'm bending forward and the bag on my shoulder falls forward and wipes out a little one, kwim? Besides, I wanted to have both hands free. So, my first diaperbag was a Petunia Picklebottom Boxy Backpack. I loved that thing to death, literally. I've actually had a couple of them over the years and if the darn outside fabric (which is just gorgeous, btw) wasn't so delicate, I'd still be using one. They are very roomy, comfortable to wear, get a ton of complements and have alot of organizing pockets.
So, a year ago I went searching for the next great backpack diaperbag. And I found it. It's a jujube packabe. it is incredibly sturdy, simple to keep clean, has lots of pockets, is very roomy and can be worn as a backpack or over the shoulder. I got it in the black with silver trim (since DH was really tired of cutesy fabrics). I see on their website they have some other new backpack designs which look great. But since my Packabe still looks like new, I guess I'm not in the market for a new diaperbag. Here's the website:
http://www.ju-ju-be.com/products.html
looks like they give away a free bag everyweek if you answer some questions. I bought my bag full price and feel it was totally worth it. Especially for all the stuff I have to cram in there and how well it has held up (I pack for our b/g twins, and my 3yo who is potty training).
hth!
" I object to violence because when it appears to do good, the good is only temporary; the evil it does is permanent." Mahatma Gandhi
"This is the ultimate weakness of violence: It multiplies evil and violence in the universe. It doesn't solve any problems." Martin Luther King, Jr.