HELP! - Galaxy SCL I9003 V.S. Galaxy Ace Plus S7500

Hello people,
I've investigated a lot about these two smartphones, but still, I have some doubts which I hope you may answer:

Which one has a better CPU?
Which one has a better GPU?
Which one has a longer battery duration? (Specify if with Android 2.2.x or 2.3.x)
Which are the advantages and disadvantages between them? (Something like a comparative chart)
Which one would you choose, and why?

Thanks a lot!

Comparative charts links:
smartprix.(DELETE THIS)com/mobiles/samsung_galaxy_ace_plus_s7500_vs_samsung_galaxy_s_lcd_i9003-c2030_150.php
jawal123.(DELETE THIS)com/publicpages/compare/samsung-i9003-galaxy-sl-_-galaxy-s-scl-and-samsung-gt-s7500-galaxy-ace-plus/en-us

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I see you posted this months ago - which one did you end up getting?