I was kind of on the fence about getting Miki3.  I really like Miki2 and expected it to be difficult for SM to top her, not technically, but in the fun factor dept.  I've only worked with Miki3 for about an hour, but I think she is pretty cool!

I don't really keep up with the technical side of Poser, but am very glad to know of PhilC's insights on Miki3's joints.