Opinions about IE

It's all about fit. Rankings are only important up to a point. Everyone knows that IE is a great school with a great reputation. But the culture and curriculum are different from the other top-tier US/UK schools. More dynamic, more entrepreneurial, more collegial, and probably more diverse. Less stuffy for sure. It's an urban campus in a major European city. LBS is probably the only comparable setting. INSEAD/Oxford/Judge etc. will have a very different feel. So will the Barcelona schools (suburban).

Think about your target geography and your target industry. Different schools have different strengths. Think about the kind of culture and learning environment you want. Think of the city/location you want to study. And if you're looking at returning to LatAm, then IE is a pretty obvious choice. If you're looking at moving to the US, the others might have a bit more name recognition than IE. But this changing. Fast.

Finally, the size of the cohort at IE is 400-500, with half in the English track at half in the Spanish. So you're more likely to feel connected to a community here, compared to INSEAD where there are 1000 students per cohort, and half of them will probably move half-way through to complete their program at another campus (Singapore). You may find it harder to make and sustain meaningful relationships, and have a broader but shallower network.

In the end, employers know that IE is easily in the top tier of European schools, so the brand isn't going to make or break your career outcome. The rest is up to you.