Sorry, it appears that I will be the first to correct myself. Here are the correct cabins:
Astors :C-62-64
Guggenheim: B-52
Edith Rosenbaum Russell: A-11
Strausses: C-55
Thayers: C-68 (J.B. jr: C-70)
Wideners: C-80 (Harry: C-82)
The only other one here that was supposedly on
B-Deck was Guggenheim, but the conditions are basically the same and therefore the assertion I made still stands.
Although a first-class ticket at the time was sold to anyone with money, the various social, political, and military elites on board were known and highly regarded/respected. It is for this reason that Astor might have been a bit more accommodated, and obviously recognized, than, say, Arthur Gee, and that isn't because Mr. Gee was on
E-Deck--it was because of the status that J.J. held. In short: inequality in accommodations and attention between first-class passengers, if it, indeed, existed at all, was determined more by the identity and status of the individual passenger rather than the particular deck on which the passenger's cabin rested.
As for the difference of cabin accommodations between decks, there were differences in sizes. Some, like the parlor suites, had more space and consisted of a larger number of rooms. The parlors had fireplaces and walk-in closets and , for those on
B-Deck, also had private promenades. Aside from styles and the above variations, however, all accommodations in the first-class suites would likely have been the same, on an basic level. It is possible that some first-class suites, other than the parlors, had fireplaces. I thought I saw a picture of Peuchen's suite, and, as I remember, it had a fireplace (although I may be mistaken). He was in C-104, right across the hall from the Astors. His was the first inside suite on the port side, just aft of the forward grand staircase on
C-Deck.
Furthermore, I doubt the accommodations of the particular suite determined the amount of attention a first-class passenger received; again, it's reasonable to presume that the degree of accommodation was determined by the identity and status of the particular passenger. Social status was regarded as very important at that time.
Anyway, I hope that helps.
Take care