I feel like as an archer, shielders are those I'm least afraid of (Maybe because they are usually much easier to deal with in melee?). The biggest threats are usually horsemen and horsewomen.
As far as I'm concerned, there are only horsewomen since anyone who has to ride a tank into battle has got nothing between their legs.
Okay... on a more serious note, no regular hybrid can counter a HA or HX. Sure having some xbow proficiency can help, but not if they know what they're doing.