Horcruxes - Hiding Places and Sizes

[kmcbears1]

No: HPFGUIDX 133992

In reading HBP, the second time I pondered the horcruxes and realized
that only 2 pieces of Voldemort's soul are of equal size - the piece
in Voldemort and the piece in Nagini. The other pieces are
progressively larger until we get to the diary which contain the
largest piece - 1/2 of the entire soul.

I created a drawing to visual this splitting of Voldemort's soul and
posted it at 
http://www.smartdraw.com/net/viewimage.asp?site=081734F63EC9F0C6=94426
if you wish to view it. I may not have the order correctly but I
believe the splitting went as such:
diary - age 16 - killed Myrtle - 1/2
ring - age 17 - killed the Riddle's - 1/4
goblet - age 18/19 - killed Hepzibah Smith - 1/8
pendant - age 18/19 - killed ? - 1/16
Griffendor's/Ravenclaw's - age ? - killed ? - 1/32

Tried to use Harry for the 6th horcrux - age about 55 (Tom is 16 in
the flashback to 50 years ago which makes him 55 when Harry was 1.) -
killed James - curse rebounded because of Lily's sacrifice - Harry's
scar was caused by his body rejecting Voldemort's soul

Chapter 1 GOF 
Nagini - age 68 - killed the old man at Riddle's house - 1/64

Leaving a 1/64 piece of Voldemort's soul in his body.

How does having such a "small" soul affect Voldemort? Is this a clue
to why love is Harry's most powerful asset?