OK lah, just my personal view:
Accent - 1.5l 12v SOHC - older technology engine (Hyundai own
design)
Aveo 1.4l 16v DOHC VGIS - more modern design (GM / Opel
design)
Accent - basically a 1995-6 design, facelifted over the years
Aveo - newer (2001?) design
Aveo nicer looking (only the hatch, sedan is 
), Accent hatch is nicer looking than the sedan, esp in
black
Aveo interior is weird design. Either like it or don't. Has cheapo
cost cutting measures like only 1 powered side mirror...don't know
if latest Accent is better.
Accent - maybe cheaper maintenance, since Hyundai more common
I used to drive a relative's Accent Auto on and off, so am quite
familiar with the car. Car was not v. economical and slow, but ok
for transport use.
Tested the Aveo last yr, but didn't buy in the end cos of dislike
of dashboard design, flimsy indicator stalk, and obiang colour
cloth upholstery....and SE not willing to throw in much freebies
other than reverse sensor. Oh, and the standard 13" Aveo rims +
wheel covers are really
If I really had to choose between the 2, may still take the Aveo,
but must have leather seats and 14" rims thrown in 
