Funny you should mention that, because Seatguru lists the bed as 6'4" which I just can't fathom knowing I'm 5'9". I took a recent transcon on DL and the seat was world's away better. I know it's not fair to compare 763/4 to 757 but to me it's about what product are you offering to the customer on the market for them to choose from. From that customer viewpoint, I found the DL 1-2-1 config with lots of privacy, and what seemed to have quite a noticeable difference in pitch, longer bed, and the footwell was world's away better. Nice and wide footwell (not angled or funneled into the center either) and I vividly remember dangling my feet up and down and sideways. Just because I could. And my seat was totally private. That was also right after I received a rather nice Tumi amenity kit, too. All that and the price was significantly less expensive than UA.