Thanks ever so much for all your replies, apologies for not getting back sooner, work got in the way.
Given that I am flying alone (hubby not coming with me), I have the luxury of deciding whether I go via a 1 stop (Emirates etc), or direct with SAA, BA.
I quite fancy trying the A380, as never flown on it before, neither have I flown on 777, and both those options are available.
Given that I am one of probably very few people left who still marvels at the sights down below when looking out of the window on a flight, then as long as I get a window seat, I'm as happy as Larry, and don't really mind about the rest (with the except of safety!).