I've currently got
Two full 125mm bottles of GIT,
a 100 and 50ml bottle of Kourous,
a 100ml bottle of Vintage Guerlain EDT, a 100ml Bottle of Vintage Guerlain EDC, a 75ml bottle of the newer Guerlain,
two 50ml bottles of A*men, and
no bottle of Terre D'Hermes (it doesn't last on me).
I'd pick GIT as I actually used up a 125mm bottle of it.
Guerlain vetiver is the one I've used most of after GIT.