On the A380 (EK 76 & 71) select the E&F seats, which are ideal for couples travelling together. These, however, do not provide a view (but the lavs in the back do!). Whether you are closer to the front or closer to the bar (in the back) is more of a personal choice.

EK 654 on Feb 2 is currently showing as a 3-class 77W (first class suites).

EK 654 on Feb 19 is currently showing as a 3-class 773 (first class sky-cruiser seat, same standard J seats as with above flight but with older ICE IFE).

Note that aircraft type can change...

Some prefer being in the forward min-cabin although there is risk that row 7 window is mis-aligned while others like the row 8 bulkhead. The port/left side of the plane (A&B) will typically give you a view of downtown Dubai and the Burj Khalifa on take-off if that's of interest.

There are a fair amount of discussions on the "best seat" if you search the flyer talk forums (best done via google).