Its hard to say what my favorite is...there are just so many good ones. But my least favorites would definitely have to be Santa Baby and Baby It’s Cold Outside.
I would add I See Mommy Kissing Santa Claus and Feliz Navidad to the list of bad ones. :-)
How funny that you mention Baby it’s cold outside as one of the worst! I happen to love it. It used to never fail to make me smile. Then I read that Ayman Al-Zawahiri (No. 2) was pushed over the edge into Muslim fundamentalism when he was a medical student in the ‘50s in Wisconsin when he saw ‘American women brazenly pushing their breasts and thighs against their male dance partners’ while dancing to a song that alludes to single people fornicating. And now, more than making me smile, it makes me laugh outright.
“Silver Bells” makes me homicidal! But I’m overloaded on just about all of them. As a musician who never plays anything the same twice,,,,, and hearing them over and over for a month? I try to avoid them! But that’s just my particular musical quirk, and I’m very glad that others are able to enjoy them!