Experimental geometry

 Dear CCL members:
 I sent an e-mail to ccl yesterday but it looks like that it was not received.
 So my apologies if you receive it twice. My question is that I am doing some
 calculation on some small molecules for which effective, substituted, average
 or equilibrium experimental geometries are available. So which of these is the
 best to be comapred to the calculated geometry.
 Best regards,
 Adel El-Azhary