How tall are you? If you are taller than 6,2 or so the seat on the 777 won't be great for you. You cannot stretch your legs fully. For me, I certainly did notice the angle, but maybe it is because of my height. The seat is also narrow, and lacks storage space. Additionally, I believe the 777s air quality isn't as good as the A380s, so you won't be as refreshed or comfortable in the flight. The direct aisle access on the A380 is certainly a big plus, and I find the cabin to feel roomier.