Ganesh, Nilanjan - thanks for weighing in.
After posing the question and its modification, i fell silent, thinking about it. in my own context and in the general "data" context too.
it is like asking for the "truth" - what is truth? it is different for each.
1. First, the notion of "best" work.
"best", especially in creative work is subjective. best can mean sophisticated-in-thought to one connoisseur, it can mean technically brilliant to another, and it can simply mean aesthetically-pleasing to a third. So in creative endeavors, defining "best," is at best, nebulous.
2. Who is to judge
most evaluation (serious ones) happen posthumously, or, after one has been given the lifetime achievement award!! Looking back over an artist's life or a creator's life, there will be periods in which his work shone. there will be duller periods. Periods in which he refines. Looking back at all these, one might be able to opine what was "better than the other periods." And why!! [this would be an interesting exercise - to study the life works of photographers over time, their own opinions and other's evaluations]
3. The creator's PoV:
"Sab se acchi tasveer toh maine abhi banayii nahin" - dil chahta hai dialogue
So let's ask the creator. One evolves. one likes what one does. one doesnt like. one improves. one likes the improvement. one improves further - iterative. (what Ganesh refers to as "overcoming the desires"). Maybe, at some point, the creator feels a certain period to be her best. maybe. but she still is creating - so maybe there is never a "best" according to her. looking back on her own life later, she might be able to pick our a period or periods where she really performed and analyse what led to those!
4. The process of evolution
However, 1,2,3 apart, there is a process, we will all agree - a process of evolution. One where the beginner is eager, tries everything. then learns. life happens, emotions happen, she refines, she morphs. in mind and in art. for what is inside one comes out as art. What life deals to an artist is manifested in their work. If they are in love with what they do, it shows. But that emotional stuff apart, in photography - which does involve technique, one has to pay ones dues. now, what of the 10,000 hr theory? is that the "dues" or something else? get out there and shoot. make terrible mistakes, fall, pick oneself up and shoot again. As one shoots, one sees more, learns to see, learns the camera, how to use it in tough situations, one hones ones sensibilities, one becomes more comfortable. and the technique and art become second nature.
resonance! no dissonance whatsoever. the state of pure performance. when one looks back on ones work, i feel, it is NOT SO MUCH AN AGE, but more like "periods" of pure brilliance. when heart and mind were ONE! Maybe it is when you have paid the dues and are doing EXACTLY what you love, and love exactly what you are doing?
still mulling.
A