The most sensible way to play the stock market is not to.
Other than that, banks and armaments companies are often good. Failing that, basic utilities are also a good idea, nobody can do without their water supply now can they? However, all this depends upon the local performance of hte companies in quesiton. The best thing ot do is invest a vast sum of money in a kind of all stocks spread. It has been shown that that outperforms all managed portfolios, because it follows the entire market, and doesnt require fiddling about with. Then the trick is to sell out near the top of a bubble and not get carried away. It also helps if you ride out several stock market ups and downs, ie follow it for 40 years, since the evidence so far is that over that sort of period of time it will end up higher than it was at the beggining.