I am sure that link-state uses cost (108 / bandwidth) as its routing metric.
I have been in a discussion that link-state uses delay and load , reliability in its routing metric as well (i disagreed).
I could not find solid authenticated document for proof through my search. Yes I found document to proof that link-state uses cost.
Any comment ?
if you are talking about OSPF then yes it uses cost as it metric with the bandwidth as the variable factor.
Delay and load are two of the metrics used by IGRP/EIGRP.