Team Pants for the time being.
Like Ledonna, I really embraced dresses during pregnancy and while my son was an infant. I was also in a hot desert climate then, so dresses and skirts were comfortable and practical -- especially lightweight shirt dresses (buttons on the front -- great for breastfeeding)!
Like Angie says, dresses are way easier in mild weather. I love them for traveling too. A knee-length tee dress plus leggings makes great airplane or roadtrip wear. Way better than sitting in jeans.
Now I'm in dirt-road New England with a preschooler and a dog, and while I do still like dresses, I don't wear them nearly as often -- especially since it's still winter, apparently, and we have almost 2 feet of fresh snow right now... I'm not brave enough to wear a dress today.
Mr. LP (or LeP?) loves it when I wear a dress, especially if it falls into the LBD genre. I always get a compliment, and he's not very clothes-aware generally. So I guess I'm choosing the right ones?