I've recently got back from a 2 day trip to Abu Dhabi, and I must say that the Etihad seats in Business Class were excellent - private and plenty of space to stow things.
I love the BA seats, specifically the rear-facing window seats for long haul, only niggle for me - there is nowhere to place your specs while you catch some sleep. If you use the drawer you have to bring your seat all the way back to be able to see again!!!