The A320's cabin is several inches wider, so it feels more spacious, and the windows are higher, which also makes it feel less claustrophobic. The extra width a

The A320's cabin is several inches wider, so it feels more spacious, and the windows are higher, which also makes it feel less claustrophobic. The extra width also tends to translate into slightly wider seats and/or a wider aisle, because when I fly economy class, both 737s and A320s tend to be configured with 3 seats on either side of the aisle. On the other hand for tall people (which I am not) who use window seats (which I don't), the A320 is worse though because the cabin wall curves in more at head level.