Prologue 1 Reaction:  Left me luke warm.  I don't see any particularly 
interesting consequences from Ranma's cure, so why bother?  Also...they
don't have a basement.
Prologue 2 Reaction:  Unbelievable.  There aren't a lot of "Ryoga gets 
Akane" fics though so it might be worth doing, except I don't think that
you can get Akane's characterisation so that she believably falls for 
Ryoga as result of this.  If all that happens is she kicks Ryoga out, 
then it isn't worth the effort.
Prologue 3 Reaction:  Actually this one strikes me as potentially 
interesting.  Unlike the other two, it does take away problems, it 
creates new ones, and that's what I like to see.