So, what is your measurement about the greatest BH player, is it how many times he is doing it or how he is doing it during the games or how good he is using his BH? many players have great BH, i saw Wang Hao and i agree his BH is amazing, but is he the greatest? why so him and not others Chinese players who are also great such as ZJK and FZD and ML/XX and whoever?
From my perspective there is really no such thing.
Traditionally the Chinese game had a huge forehand and a weak backhand. Traditionally, the European game had a strong backhand and an adequate forehand. When the Swedes started dominating in the late 1980s into the 1990s, China sent a player to Sweden to learn their style. That was an unprecedented move. The player was Kong Linghui: World Champion and Olympic Gold winner. However, Kong was still a forehand dominant player who had a solid and adequate backhand.
Wang Liqin was in the same mold where the forehand was a beast of a weapon and the backhand kept him a 3 dimensional player but was not really something you had to be worried about as a weapon.
Ma Long is actually still in this mode. Perhaps he is the last Chinese player in that mold. And his backhand is awfully good, but it is not the kind of weapon his forehand is, and it is not the kind of weapon that Wang Hao, Zhang Jike or Fan Zhendong are able to use their backhand as.
Those three, if they want to, can dominate a game and an opponent by pinning him to the backhand side and forcing them to go backhand to backhand, or to try and turn to the forehand where they will be vulnerable to a down the line punch.
History aside, a great backhand could be many things. Kreanga's is a monster backhand. But it might not be as versatile as some of the newer players. Still, that is a beast of a backhand. Persson has said himself that his swat kill backhand, that made his backhand so powerful and effective in the 1990s is a shot you can't live and die with in todays game. In todays game you have to be able to spin the heck out of the ball with the backhand loop so that the two sides both have powerful spin. Still, it was an amazing backhand.
The kind of things that guys like Dima, ZJK, FZD and Wang Hao are able to do with their backhands really cover such a broad range of skills, from looping over the table (what people often call banana or flick), to long distance bombs.
There are so many great backhands. Maze's backhand might not be well rounded but some of the shots he makes with his backhand when he gets backed up on defense and gets a chance to counter loop are pretty darn amazing.
In 2003, great serves and a solid, steady backhand, that did everything people did back then with a backhand won Werner Schlager the World Championships.
Today there are a handful of players who really can do everything well with the backhand and can dominate an opponent by not letting them get to their forehand, or forcing them to give up position at the table if they try to turn to their forehand. It is great to watch someone who can really control a whole match with their backhand and dictate the pace and tactics.
Who is the best, several people.
Oh, and by the way, Xu Xin really does not use his backhand much or effectively because his forehand is so good. But when he uses it, man, it is a crazy thing to watch. Some of those sidespin loops he gets with his backhand, unreal. But it is also not fully developed or so well rounded.