for ogres this is about the nastiest legal army I can think of.
144- Bruiser, heavy armour, enchanted shield, ironcurse icon
40- 20 gnoblar
48- 8 gnoblar trappers
365- 9 bulls, full command.
Wood elves would be nasty- they might not be good at 2km but at <1000 they rock.
120-noble- hail of doom, brairsheath
120- 10 glade guard
120- 10 glade guard
120- 10 glade guard
120- 10 glade guard
or
115- Branchwraith- annoyance of netlings, cluster of radiants
240- 20 Dryads
240- 20 dryads
or
65- Branchwraith
132- 10 dryads- champ
132- 10 dryads- champ
132- 10 dryads- champ
132- 10 dryads- champ
... if I was really being an arse I would make an army with glade riders- it would barely kill anything, but any non-shooty list would really struggle to catch them.