Discounting the Indonesian players as most of them have such superb backhands that it wouldn't be quite fair

I would say though that Ginting has the whippiest and most Taufik-esque one among the young guns while Sony is clearly a contender for the top spot amongst the old breed.
That aside, the obvious ones nowadays would be Viktor with his stinging backhand smash and Chen Long with one of the smoothest and most stable backhands. Would say that Viktor loses out to Chen Long just slightly as while he HAS a backhand smash, I feel that his general backhand really isn't that dynamic and he even seems a tad awkward playing shots in his backhand corner, whereas Chen Long has the ability to hit it anywhere he likes even in pressured situations while still being able to get excellent length and quality in his backhand shots about 85% of the time.
My personal choices asides from legend and idol Taufik

would be Chen Hong and Boonsak. I think that Chen Hong was, and still is, seriously underrated amongst the Chinese players of the past generation. I would suggest that he was somewhat overshadowed by Lin Dan who exploded onto the world scene around the time of his prime, but I remember Chen Hong as being one of the most skillful and wittiest of players during his time, possessing a wide array of shots in his arsenal with his backhand being particularly deceptive and executed with a distinct and unique motion. Possibly the last in the line of the more skill and stroke-play oriented Chinese players such as Sun Jun and others coached under Li Mao. Boonsak if I remember correctly, was coached in China for a period of time during his younger years and his general style very reminiscent again of the Sun Jun and Chen Hong generation of players. Skill-wise very complete and a master of strokes including a beautiful backhand as well, if only a little lacking in the physicality aspect especially today.
Ending off, I personally think that you will find the more outstanding backhands among the skill-based players rather than those focused on power and physicality. That said, most of the pros' backhands puts us casuals' ones to shame, really.

All of these, of course, are just my opinions so take it all with a grain of salt chaps
