Keep the Fraser and the Jeffery.

The other two, although they sound like high end bolt guns, are a good choice for the beginner collector as ammunition for them is everywhere. Of course may be for the Fraser too.

Rigby and H&H are names that almost every sportsman recognizes so there is that aspect of familiarity for the new collector.
There's nothing worse than attempting a conversation with a self identified gun nut about Frasers, Jefferys, and others while their eyes gloss over and you may as well be speaking a foreign language.
No collector wants to be on an island...