Bards have slightly increased stats over archers (not sure at 50, but at 41 its 11 dex), but lose access to a multitude of useful cross-class skills and a reduced number of them.

Archer/Bard XCS
Feint (LNC) 20% slow
Keen Flurry (LNC) 40% parry
Invigorate (LNC) Restore 400 TP
Blood For Blood (LNC) 20% DMG increase
Featherfoot (PGL) 25% evasion
Second Wind (PGL) Self Heal
Haymaker (PGL) 170 potency after evade 20% slow
Internal Release (PGL) 20% CRIT increase
Mantra (PGL) Increases healing received by 5% for self and party