I check the faculty list of other countries, say, Australia, I would like to say the performance of those is not on the same platform with their couterparts in the United States. If you would like to contribute to the Academic society, you are no wrong to go to the States
a couple of years ago, the schools in AU accept both T and IELTS, but the embassies dont accept TOEFL when you try to get the visa, so you end up using IELTS to apply for AU univ.
and now, which is a couple of years later, I am not sure... But it is not likely they will reverse that policy so probably IELTS is the only thing that can land you in an AU univ.