Which way to go - Duodenal Switch or RNY and why?

Which WLS is better Duodenal Switch or RNY? My plans were to have lap RNY - that is what my surgeon performs, but I have heard and read of the DS that some say are better. Which is the best route to go? My biggest deciding factor would be not regaining weight after a few years. Is one better than the other for keeping weight off permanetly?

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