Vanilla:
1:Wc
2:Maraudon
3:Sunken Temple(the old complete one)
4 Dire Maul
5 deadmines
Tbc (everything pre nerfed i mean the first nerf not the last that makes those instances totaly lame)
1 old hilsbrad
2:shadow lab
3:auchenai crypts
4:shattered halls
5:arcatraz
Wotlk:
1oculus
2:Ho stone
3:Ho reflection
4:stratholme
5:ahnkahet odl kingdom
Cata:
1:grim batol
2:halls of origination
3:deadmines
4:shadofang
5:zul aman
Panda:
1:siege of nizuau
2:shado pan
3:scholomance
4:mogushan palace
5:gate of seting