by the way I think we can discuss BEST BARDS FEAT because they can have only 8 (if human) feats throughout their carreer.

I'm thinking about

BATTLECASTER
SF ENCHANTMENT (because bards dont have many evocation spells they're more close to enchantment)
GSF ENCHANTMENT
SPELL PENETRATION
GREATER SPELL PENETRATION
TOUGHNESS
CURSE SONG
EXTRA MUSIC

very limited indeed, all comments and opinions are welcome. feats you like to add or remove?