Originally Posted by
laxmillenial
To increase your chances, don't just buy a W fare, buy a Y,B,M, etc. As high as your company will allow, it's still an 'economy' ticket.
I wouldn't go higher than a V or a Q for that purpose. Odds are you're just throwing even more money away if you go higher.
Going one fare class above a W definitely gives you a potential advantage on a flight that's heavily waitlisted with 1Ks though.