Which of the rival themes from the Pokemon games do you like the most?
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NOTE: I included the champion battle theme from Red/Blue, because that's the only time Blue gets a unique battle theme. Also, I only included Cheren and Bianca's theme in Black, because I believe N's role to be more like another group of characters who got seperate themes in the games (if you know what I mean...).

Blue! From Pokemon Red/Blue/Yellow
Silver! From Pokemon Gold/Silver/Crystal
Brendan/May! Form Pokemon Ruby/Sapphire/Emerald
Barry! From Pokemon Diamond/Pearl/Platinum
Cheren and Bianca! From Pokemon Black/White

I'll have to say I like Cheren and Bianca's the most. It just sounds so friendly and fun! Pokemon Black and White have the best OST from the games this far, IMO.