Was very entertaining, and very gay.
Holmes: From the trailers, I thought that RDJ was nothing like Sherlock Holmes. He still doesn't look a thing like him, but I've warmed up to his interpretation. He kind of makes me think of Jack Sparrow mixed with Sherlock Holmes; his wide-eyed weirdness reminds me of Sparrow, but the mental analysis of every situation and fight, along with his complete disregard of social conventions and his obsessiveness, were pure Holmes. Apparently he watched Jeremy Brett's Holmes to prepare, and I can see bits of Brett's bipolar Holmes in his portrayal. Holmes is more falliable than usual, with a bit of slapstick and both Watson and Irene getting one over on him once in a while, but he's still absuredly competent. He's not the Woman Holmes like Brett is for me, but I like him.
Watson: I LOVE HIM. He's the athletic and handsome (so very handsome) Watson from the original stories that rarely turns up in adaptations. He's the muscle of the two of them, and he's intelligent (he's a doctor, after all) without being at Holmes' level. I think he's een more competent than he is in the originals, which I can't complain about. And he's way less likely to take Holmes' shit, which leads to...
Holmes and Watson: HOLY SHIT THEY'RE MARRIED. AND GAY. Gay to the point of Holmes offering to marry Watson (Watson: "If I go to the countryside, I'll be going with my future wife!" Holmes: "Well, if we must.") and Watson saying "Well, you look gorgeous." and Holmes blatantly trying to break up Watson and Mary so he could have him all to himself. I am happy. Their realtionship is a lot different than the originals; Watson is more of an equal partner to Holmes, and he is not afraid to tell him when he's being obnoxious (often), or punch him in the face when he insults Mary, or release the flies he's experimenting on when he wants to get him out of the house. Holmes' caring for Watson is certainly apparent, what with trying to keep him all for himself and watching over him when he was injured, and Watson's is shown through simply being there when he needs him. And Holmes' supremely awkward admission that he's glad Watson's alive is just adorable.
Irene Adler: She holds her own against Holmes well. Her voice was a bit high for my tastes (she's an ALTO people!), but I generally liked her. Also the fact that she runs around in men's clothing half the time. I like how they did the Irene/Holmes - they've been involved in the past, and the movie gives the impression their relationship consists of brief, passionate affairs. Their last scene together was awfully sweet, too. And she, Holmes, and Watson work surprisingly well as a trio in bed.
The Villains: Lord Blackstone, sufficiently ominous; I do like Holmes vs. the supernatural stories, but I like how Blackstone's methods were not. Big French guy was kind of adorable. I knew Moriarty was coming the second Holmes called him a professor, but that doesn't mean I didn't squee when Irene dropped his name.
The Others: I actually thought they made Lestrade evil for a bit - nicely done. Needed more Mrs. Hudson. Mary was kind of a non-entity just like Holmes wants. Poor bulldog: adorable.
The Plot: I liked it. As I said, the 'supernatural' elements were otherworldly enough that they could be real, but there were clues that everything wasn't what it seemed sprinkled throughout the movie. Not enough that you could solve the case along with Sherlock, but enough that the big reveal makes sense. I'm glad they left it open for a sequel, with enough Holmes/Irene to work out without it seeming like a retread, and of course Moriarty.
The Credits: Were pretty. Like Jude Law.