The Hounds of Baskerville was actually one of my favorite episodes. The Abominable Bride confused the crem out of me, although I highly enjoyed seeing Victorian-era versions of the BBC Sherlock cast (in contrast to the Victorian-era Robert Downey Jr Sherlock movie cast). I always get a kick out of Sherlock's inability to remember Lestrade's first name and thought John's cueing him in this episode was hilarious.
I have more to say, but it's late and I have to get up freakishly early tomorrow, so this'll have to do for now.