5th Gen Favorite Music so far?

Probably the Team Neo Plasma battle theme. I loved the original, and the new one just made it even more catchy and amazing. Turned up sound when I ever I battled them.

I really enjoy the Champion battle music, and the Join Avenue theme!

The Hoenn battle remix in the PWT is really cool too. (I regularly partake in that just for the music haha).

The Elite 4 Theme from Black/White/Black 2/White 2. Simply amazing. I could listen to it all day.

I loved the music before you battled Elesa and Roxie. I thought the addition of lyrics in them was great. I also thought including the Route 10 music even though the place itself wasn't accessible was also a smart idea.

The Entralink music. That's the only one I can remember and I love it.

The songs for the musketeers and version legedaries are honestly some the best songs I have ever heard in a video game. Both are very different from other legedary themes and at the same time, better. Older legedary theme were slower and sounded more "legendary", but the new themes are fact paced. Just like the games.

Excluding all of the gym leader and champion music remakes at the PWT, my personal favorite theme is the one that plays inside Clay's gym.

Alright, well I just beat the Elite 4 for the first time, and I must say, I really like Iris's battle music. Especially the intro.

Roxie's gym & Champion Iris battle music were my personal favourites.

When I reached Floccesy Ranch, I thought the music was really catchy. I had the song stuck in my head for a while afterwards.

I regularly look up the soundtrack though. I like the emotional music the best I suppose :P

That's.. how many? 8/ 9/10 mentions of Roxie's gym? Really, the music there seems too- artificial- for a rock band. Especially with the words in the background, where O and N are quickly sung in one beat, knocking the rhythm off. Cringe-inducing, to be sure.
Elesa's gym has some nice music, not too out of place but not flaunting the 'fashion show' theme. Steady pulse throughout, repeated refrain, accentuates the mood of the gym.
Gym leaders' battle theme has been remixed to epicness- much more dramatic than the original. Personally, I find that the shift in music at the last Pokemon gives it a 'final stand' or 'fight to the death' feeling, especially when the Pokemon is the most powerful and revenge kills just about every Pokemon on your team. And then you 1HKO it.
My favourite is actually the Village Bridge theme, complete with flute, guitar and enka (that's what the style of singing's called in Japan, thanks Wikipedia!). Wistful and reminiscent of a post-war song, mourning for good times gone, especially when you check up the lyrics. I'm surprised that nobody has mentioned it.

I love the gym themes in this game. My favourite music though has to be the final battle of the world tournament.

My favorite music in the game is the one in Join Avenue.
That's also my favorite feature right now :D

Azelf/Uxie/Mesprit for sure, and it's a better mix as in D/P/Pt as well so that is awesome :D

Route 19. I first heard it in Autumn, and it blew my mind.

I gotta say a tie between Colress's theme and Iris's Theme, closely followed by the Marlon's Gym Theme.

Pokestar Studio theme. The song is epic that I feel like walking to the Red Carpet of Fame there.

Johto Champion theme. I've yet to find a single problem with it.

Theres a few in B2W2; Lentimas Town, Aspertia City, All of the PWT Leader music, Neo Team Plasma etc.