Assuming you mean business class, then definitely window seat at row 2,4 or six at these are true window seats with a side table console separating you and the aisle. If you are travelling in a pair, then odd numbered rows in the center as these seats are closer together. I think row 4 is probably my fav row to pick if you are travelling alone as its further from the galley and toilets.

If you luck out and get one of the aeroflot/turkish airlines A350, the even numbered rows are true window seats too.