http://gameboy.ign.com/articles/523/523718p1.html
The magazine put the DS and PSP through twelve rounds with seventy-six Japanese game developers and various other members of the game industry.
ROUND 1: Which do you think will sell better?
PSP = 102, DS = 137, SPLIT = 111
ROUND 2: Which will be cheaper?
PSP = 31, DS = 274, SPLIT = 38
ROUND 3: Which will be released first?
PSP = 98, DS = 152, SPLIT = 101
ROUND 4: Which will have more interesting software?
PSP = 66, DS = 172, SPLIT = 111
ROUND 5: Which design to you like better?
PSP = 251, DS = 42, SPLIT = 58
ROUND 6: Which one do you want to carry with you normally?
PSP = 134, DS = 69, SPLIT = 147
ROUND 7: Which one do you want to play while on the train?
PSP = 140, DS = 91, SPLIT = 119
ROUND 8: Which one makes a better present?
PSP = 104, DS = 89, SPLIT = 154
ROUND 9: Which one has more appealing functionality?
PSP = 113, DS = 149, SPLIT = 88
ROUND 10: Which will feature more fresh, new software?
PSP = 31, DS = 244, SPLIT = 74
ROUND 11: Which one is easier to develop for?
PSP = 114, DS = 98, SPLIT = 134
ROUND 12: Which do you want to be left standing in the end?
PSP = 84, DS = 156, SPLIT = 112