Linkoping, I find Solti's Mahler under-rated by many - he may not dig as deeply into it aas some but it certainly doesn't lack a certain excitement (and, in general, I'm not a Solti enthusiast). If you don't already have it try Tennstedt's M5 on LP, the recording isn't perfect but the performance is excellent - he puts a lot of bite and drama in his Mahler, all of his Mahler is well worth having in your collection. I share you apparent opinion of Barbirolli. I put it on when I want to take a nap. BTW I think the Inbal/Frankfort is on Denon, at least it is on CD, and to my knowledge there is no relationship between them and Phillip's. Or did Inbal record this twice?
Shventus, I am unaware that the Inbul M5 was available on LP. Wasn't it recorded in the 80's? I agree it is excellent, as is his M3, M8, and M10, in fact the whole series on CD isn't too shabby!