I play in Tonberry, it's a Japanese server but relatively there are a lot of English-speaking players.
Throughout my playthrough, I have never once had received RMT tells. But Tonberry is rather populated, so if you decide to start there, you might have to wait around 4 AM JPT (or any odd hours) during weekdays to create a character...

I'm not sure of the ping if you live in the States, though.

Enjoy your stay in Eorzea! If you play in Tonberry and you need a tank/DPS to help you, feel free to find me.