Microbiology Laboratory Identification Systems

Hi. I’ve been requested to perform an assessment on three identification systems in terms of their performance, currently or most used within pharmaceutical industries, and of course more cost effective. The equipment’s are Vitek, Biolog, and MIDI. I have validated the Vitek system before and I know that is commonly used in Pharma as well as Biolog. But I haven’t seen the Biolog since 2005 and recently an upgrade was performed to this system. I know little about MIDI system which ID is performed thru a GC technology. Can someone help me out to perform a fairly comparison between these systems? Thanks in advance!