America's leading telecom providers have a lot in common, but only one can be the best.If you're an everyday investor in search of stocks that can pay you steadily increasing sums, America's telecommunications oligopoly is a good place to start. At the moment there are just three companies with nationwide 5G networks, and new subscribers who are likely to stick around a long time are flocking to their services.AT&T (T -1.67%) offers a 5.1% dividend yield at recent prices. The stock has risen about 44% over ...