DS Lite for me, the original design was a bit of a turn off for me, but the Lite is what got me truly addicted to that system.
GBA SP is the only correct answer.
tell that to people who liked using headphones
"Just for comparison Uncharted 4 was 20x bigger than Splatoon 2. This shows the huge difference between Sony's first-party games and Nintendo's first-party games."