I chose "other" so here i am to explain. . .
The reason I love the music so much in Alias is because it always fits the scene perfectly, be it love music, depressed music, or the misson music. Just the fac that when you are watching it, you not only hear the music but you literally feel the music (not to sound corny). when watching Alias scenes they seems so real and you get so involved because not only do you see what is happening, but you hear these songs that fit the situation so well (both lyrics and the music itself) that you just fall into this story and love it.
I couldnt decide because it isnt the love music or the angst music that I like, its how the show uses music. I love it all.
Take Episode 19 "Hourglass", during Sloane's excecution the song "Change (in the house of flies)" by the Deftones played, simultaneously Syd was stealing the hourglass. That scene was one of the most moving scenes ever in Alias. I mean, i was so caught up in that one single scene. It was amazing and I can't explain it exactly, but everything made me feel the desperation of sydney, yet the emptiness and shock of sloane. I sat in silence watching that scene. I wasn't saying "oh cool! syd is going 'bristow' on his a$$". I was so moved and captivated that I was sittting in silence. It was nothing short of brilliant and the reason why? the Music. Watch it on mute. It's just sydney running and killing people really slow and Sloane arching his body with a painful expression on his face.
So now that I've gone slightly off topic, I'll add the bit: After watching the shows with greats songs in them (what i am talking about. . . all of the shows have great songs, well anyway), I have gone and downloaded the songs that I particularly like and I always end up loving the song or listening to it over and over. The depression songs and beautiful ("Delicate" Damien Rice, "I Shall Believe" Sheryl Crow, "Stay" Michelle Featherstone), but so are the misson songs ("From Rusholme with Love" Mint Royale, "Starting Over" The Crystal Method, "Diggin Your Scene" Smash Mouth). They just seem too choose amazing songs that not only fit the moment perfectly, but are great independent of the show.
So there. Everything I wrote above. That should have been an option. ^_^