A380 / 4-Class / F / 4K
Pros: vast amounts of personal space for work and relaxing. bed is both long and wide. video screen is giant. "ottoman" seat is wide and easily big enough to be a true companion seat at mealtime, unlike the 744 version. the seat massage feature is outstanding, not an afterthought like some.
Cons: Seat controls are a tad complex, can be difficult to get good foot support unless nearly in bed mode. The F and K seats both access the starboard aisle, so it will carry more traffic and be slightly less private than the A side seats which have an aisle to themselves.