I've sat in both 1A and 2A (on the same flight!) and my conclusion is 1A is great if you are travelling with someone or if 1K is free! Otherwise I'd choose 2A. I think the advantage of the nose curve is exaggerated. On my recent flight there were only two F pax in 1A and 1K, but the pax in 1K decided to move to 2K.

View of 1K from 1A


View of 2K from 2A (with the head of the pax in 2K behind the roses )