Ah a topic close to my Pyramid shaped heart. Lets start with Shattered Memories, while still keeping it spoiler free for those of you who haven't played it yet.
Shattered Memories: It's simple, not just because it's on the Wii but because they really want to instill that sense of fear into you that you are in a nightmare. For the most part it plays VERY smoothly and the waggle controls while they are still waggle controls are pretty responsive. My friend moved spots on the couch while playing and his character got up and changed seats in the car he was in at the time.
The game throws almost everything out of SH 1 (I haven't played through all of 1 but I know most everything that happens in it) that focuses around the cult of silent hill and keeps it a story about a man looking for his daughter. The ending you might catch on to if you know what you are looking for but all and all it's a fun ride. My only main gripe was that the music didn't feel like Silent Hill music with the exception of a couple tracks. 6 Hours long, and if you can get it used is a nice time for you and your Wii.
Silent Hill 2: Look, i know its sad but i've been to the end of the game 3 times and right at the end of the game my 360 eats my save so I can't finish. It's good enough that i've played it 3 times and never finished it. Currently on my to do list as my friend is giving me my org XBOX back so I can just play it on there without running the risk of losing save.
SH 3: The first one I played. I honestly thought it was a pretty solid game all around with all the usual SH gripes (control etc). As I didn't play one I didn't realize how closely it tied into the first game. They make it way more obvious when you play Shattered Memories.
SH4: Sitting on my to do list after 2.
Origins: Excellent game, pick it up if you haven't played it. Some of it is a bit silly like carrying 5 TVs to beat monsters with but is a VERY solid SH experience.
Movie: So they changed a couple things, don't you people realize this is one of the best video game movies to ever come out?
Personal Feelings: I'm pretty invested into the SH universe, almost as much as Resident Evil or Legacy of Kain. I can hear almost any song from SH and it cheers me up and I always look forward to more SH news. It's got so much more potential and I hope it keeps going strong. Now if they could only make something as great as 2 I'd be in heaven(s night).