I generally spec AMD based system due to knowledge rather than brand loyalty, but It can be looked at that way.
If I spec AMD and someone can spec an Intel build of similar budget but better performance then I would try to improve that build with PSU, HDD, SSD etc.
I my earlier days I was rather blind in terms of AMD Vs Intel, but both are competitive, just Intel is faster but costs more, which is understandable.
May I suggest that anyone that specs only AMD/Intel not be frowned apon, as it is most likely due to experience. And yes, loyalty should be taken in to consideration especially when speccing for someone else. Why would I spec something I have had no experience with? It makes no sense.
If an OP asks specifically for a brand but you want to suggest something different then you have to back up your suggestion, not use loyalty here, but statistics and facts.
So to recap;
Loyalty should definitely be used when the OP just wants a PC for £X, but can be backed up by statistics.
Loyalty should not be used when the OP wants xBrand system for £X, statistics should be used.
TL;DR Stop arguments by doing some research. If the OP is open to any system then any experience you have can be helpful. If OP wants an AMD/Intel system and you want to suggest otherwise, use facts.
Also this is not directed to anyone in particular.
