Why the TR-707 is better than the TR-909

Here is a comparison between Roland's top of the line drum machines from 1983 and 1985.

Which do you prefer?

0:00 Introduction
1:45 Build quality
2:30 Controls
4:04 Display usability
4:56 Buttons
5:25 Accent
6:14 Pattern storage
6:59 Inputs and outputs
8:34 909 MIDI bugs
9:27 Sounds
13:26 Swing
14:26 Outro