I get tired of the AtS theme sometimes, so tired of it that I sometimes skip it. I have never, EVER (and I never will) grown tired of the btvs theme song. It always puts me in a great mood. I could listen to it over and over and over again. I look forward to it every single time that I watch Buffy. I had a mini marathon last night while I was babysitting, and every time it came on, my one year old sister would start dancing/clapping.
To be fair, she does that when the Angel theme comes on too. I've taught her well 😉