I find a lot of baby fics disappointing for one reason or another so picking a favourite is difficult.
Fics such as Niamh's
Origins series and Isabelle's
The Island of Galleno have baby/child aspects to them I like but the fics in general are really good independent of that angle and not focussed on it so I don't think of them as 'baby fics' (and yes, Origins is one of the best fic series around).
Buffy and Spike's emotions/bond with their child in Jypzrose's
Arizona is nice though there is a lot of w/o stuff in that one I found boring personally.
For proper 'baby fics' I like the prophesied/controlled ones, such as Kallysten's
To See the Sun Again or
Tricky propositions by spikes_slayer08. Although, as I say, there are aspects of them that I'm not as keen on and find that baby fics often go very corny towards the end in particular. I'll be interested to see the recs people give as I'd love to find a really good proper 'baby fic'.
