I think for many peeps, it may often be a case of which type(s) worked the routes they commuted on, which type they became use to, and having been professionally involved with both from introduction onwards, the 458's - no offence my friend - have been the bigger headache when it came to available resources (from time to time), but it was what it was, speaking from my retired armchair!
Couple of my pics previously posted, but in keeping with this thread I hope, both taken when the types were brand new to the SW.