Hey kate,
I was afraid to try the moby, so I got the baby k'tan, and i've used it a couple times. i still have to work on getting her position in it better, but so far it is good and super easy to use.
I did buy the seven sling months ago, with the free code. We tried it the first week or two, and it was terrible, she hardly fit and it just did not seem very safe at all, so now it is sitting collecting dust.
I had a bjorn but then read terrible things about it. I tried it once and while it was easy to use, my shoulders hurt really bad after only 30 mins or so of using it. So then i did ton of research and ended up getting a beco butterfly 2. I went to a store where I was able to try that one, the beco gemni (this is the one that can be worn with baby facing out) and the ergo. I liked both beccos, and probably would have choosen the beco gemni (I liked how the shouldars attached cross in the back) but i ended up getting the beco butterfly because I liked the fabric choice better (I know its vain, but i wanted a cute one and one that could be good for a boy or girl, so ok with future kids).
Desiree is actually sleeping soundly in her beco now. it is great when she is fussy and just wants to be held and rocked. I can out her in it and within minutes she is asleep. i just have to walk around every little bit or rock her, because she doesn't like it if i sit too long

I actually posted a picture of her in the beco the other day, on my facebook page if you want to see it.
I know there are tons of options and i spent hours one day researching and then time trying them and talking with the owner at the store (
Granola Babies, can buy online, and the store is near my house).
I found good info on the baby center babywearing forum - great app on my phone comes in handy for middle of night feedings:
Babywearing - BabyCenter
Sorry that was way more than what you were probably expecting! good luck and let me know what you end up with!