In my mind RE2 is one of the best games around, and while there are elements of 1.5 I would've liked to have seen in place of some of what we ultimately got, I think (based on the story elements I'm aware of) RE 1.5 would've been a lesser sequel, especially in terms of character development and story progression. No offense, but I'd take Claire over Elza any day.
All that said, you might want to make the point of your post a little clearer, as there didn't seem to be anything to really kick off any sort of discussion outside of simply presenting the material