Been reading too much OOTS recently i guess
Still, my idea for a versatile combat & general support bard, assuming a 32 point build with +3 tomes available:
12bard/6fighter/2rogue
starting stats 15/14/14/14/8/14, level-ups in STR to qualify for OC.
half elf, paladin dilly
feats:
Toughness, empower healing, 2wf, i2wf, g2wf, dodge (stalwart prereq), PA, cleave, IC slashing, quicken, extend, g.cleave, overwhelming criticals (those last 2 as epic feats)
PrEs virtuoso 2 & stalwart defender 1
extra notes:
can't take warchanter with this as a 2wf build since no space for weapon focus, hence virtuoso instead, for some reliable CC & heal over time song... empower healing would let me boost rejuvenation cocoon, which is a "must have" twist for me extend for longer displacements & haste to reduce need to renew mid-fight. Primary destiny would most likely be fatesinger, though primal avatar has some tasty bonuses too.
variations:
could go with a 2hander build, then ditching a couple of the weapon style feats would have space for something else, eg. weapon focus to go warchanter instead.
I know it wouldn't be the most amazing of builds for soloing etc, but it seems like it could be a pretty solid performer in a party.