Looking at some answers and comments in [this question](https://german.stackexchange.com/questions/34797/das-ist-mir-wurst-etymologie-bedeutung), saying "Das ist mir egal" seems to not be very polite.

What would a polite way of conveying "I don't care" be?

>A: Wollen wir heute abend zum Italiener oder zum Griechen?
>
>B: [I don't care/it's the same to me!]

Edit: To differentiate to this [similar question](https://german.stackexchange.com/questions/12357/is-there-any-other-way-to-say-i-dont-care-in-german), the answer there notes that "Das ist mir egal" is used politely. But in the question I link to above, it notes that it's not quite polite.  What's the difference?  How would I use it politely?