WS will never beat COM.
WS will never take COM. Nothing will unless COM prices skyrocket to a million a year. Then, dotOrg is going to be hot, hot, hot.
However, I disagree with everyone else that other lower class TLDs like WS are totally useless. If you have a main website that's a COM, you can use any TLD to direct traffic to it. The reason is because Google doesn't care about the TLD. So you can get a premium WS for RegFee, then redirect all the links on it to your main COM that probably doesn't have premium keywords.
For example, domainnames,ws could easily redirect users to veryaffordablebutdifficulttotypedomainnames,com. Since most of us can't afford domainnames,com, it is useless to talk about how much better and wonderful it is.
I register lower TLDs as a marketing strategy. I have a bunch of lower class TLDs redirecting a few 50-100 users each month to my main page. I put mini-sites on them and invest very little time into them after they go online. Time being money. I only work on my COMs. I put it online and let it go. A good example is C---------s dot CC (name unimportant). I couldn't afford the COM, but could afford the $18 CC. So that $18 is getting me about 450-500 visitors each month. Since a paid visitor costs about a quarter (in my field), the lower grade domain extension has long since paid for itself.
Please keep in mind that I am not suggesting to use WS as your main website. I am also not suggesting massive time invested. That's pure folly. I am merely suggesting that good keywords can produce traffic and that traffic can be redirected to your COM. Using lower extensions as traffic boosters in this way is well worth the yearly RegFees.
Domainers buying these type of domain names to park them at SEDO and to resell them at COM prices are suckers. Buying to park is a sure way to go broke.