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No tengo la mujer mas bella del mundo, pero sí la que más me quiere en este mundo
I´m not with the better betatifull of the world, but if .....?¿?¿?

=>

My wife may not be the most beautiful woman in the world, but she is certainly the one I love most in this world.

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I´m not with the better betatifull of the world, but if, (con la que mas me quiere en este mundo) how I translate this?

I don't have the most beautiful woman in the world, (pero si la que - I'm not sure how to translate this) but if you want me in this world...(is there more that should come after this? It's a fragmented sentence if I translated it correctly)

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No tengo la mujer mas bella del mundo, pero si la que mas me quiere en este mundo 

I´m not with the better betatifull of the world, but if .....?¿?¿?