Next Decade Stocks

what’s the best stock to own for the next month or the next decade?
I’m thinking AMX: America Movil. I imagine that cell phone use will grow throughout Latin America as income levels rise, so their franchise ought to become increasingly valuable.
And since the stock has been held back by the recent market drop, it ought to do well in the near term too. Recent earnings were a big WOW.
BIG investment theme for the next decade