Eastman or Aero?
I've got an Eastman House Seal A-2 and an Aero FQHH in russet. Both are superb for different reasons. But it doesn't matter which you buy, they are both great jackets and either one will start a collection where you end up buying at least on in seal, one in russet, one smooth, one jerky or grained, one eastman, one aero, one Real McCoy etc etc.
So which jacket starts your collection isn't that important - you always want the others as well anyway.
I've got an Eastman House Seal A-2 and an Aero FQHH in russet. Both are superb for different reasons. But it doesn't matter which you buy, they are both great jackets and either one will start a collection where you end up buying at least on in seal, one in russet, one smooth, one jerky or grained, one eastman, one aero, one Real McCoy etc etc.
So which jacket starts your collection isn't that important - you always want the others as well anyway.