Food would be great. I know it's boring, but I also like gift certificates! I liked toys, b/c we don't have many. WE got one pair of little velcro close bootie things that I love, b/c they keep her socks on and we didn't have anything like that. We're swimming in basic pink clothes. While I love all the little outfits, I really appreciate any clothes that are a little bit different. Like maybe lavender or anything other than pink, or little casual outfits instead of just sleepers and gowns.
Re: Favorite gift from vistors?
When I was on hospital bedrest, my coworker brought me an iTunes giftcard - I loved that.
After baby, my favorite gift was food.