This article says it all. It sums it all up with :
“T-Mobile is the clear winner in this matchup. I'd much rather own a growing iconoclast than a drowning giant.”
https://news.google.com/articles/CAIiEAmhtWM3lO-DGGVwokkEZCoqEwgEKgwIACoFCAowgHkwoBEwwjU?hl=en-US&gl=US&ceid=US%3Aen