I started out with a New Native Baby Carrier (which is a pouch) but it was too small by the time he was a couple of months old. Then I used a Hip Hammock (from the original woman who created and handmade each of them personally, not the Playtex copy), but my favorite that I loved and used all the time (ALL the time, my first baby had GERD) was the Zolowear sling:
http://zolowear.com/
I got it in a striped fabric. I had avoided slings before I found these because all the ones I had seen were made of that awful baby fabric, like teddy bears. Mine is like a washed natural fabric with a tiny rose stripe. It's extremely well-made, it's lasted through two babies and still looks almost brand new. I really like the zipper pocket on the front. I would stick my DL, keys and some money in the pocket, and didn't have to carry anything extra when I was just running up to the store.
The pouch did work well when he was tiny. I got that to start because I worried that I wouldn't be able to figure out the ring sling. My son cried all the time, except when he was in the pouch. He would just kind of curl up around my belly, all the way down in the pouch where it was dark, you couldn't see him at all. People came up to me in stores and asked if I had a baby in there. I do think now though, I would go for the sling first because it's so adjustable.
The Zolo Wear site also has a ton of great videos on how to wear your sling or pouch. They cover different positions, different ages of baby and all sorts of situations, like breastfeeding, how to shift them around, put them in or take them out. This link should take you straight to the videos:
http://zolowear.com/Wearing.aspx#2
I've been very happy with my sling. Remember to check the outlet link, they have some pretty good deals sometimes.