E-MU Proteus VS Dimension Pro

i have home studio 7xl, with dimension le and tts-1 and strings virtual instrument.  i am mostly interested in getting the best strings software.
 
does anyone know if e-mu proteus virtuoso is different or better than the above?  does dimension pro have different or better string sounds than e-mu proteus?
 
i know for $20 more i can get the diemnsion pro instead of the e-mu one, so it seems like a no-brainer to get dimension pro as it has a lot more than strings.  but i'm searching for strings as the most important criterion.
 
thanks,
 
jim