Hey, andya27-- G&H and SG are two different companies that branched off from one firm MANY years ago. They're both in or around Kendal and they both make great baccy. Their blending and flavoring style are different from each other to me. I prefer the straight Virginias of Samuel, but don't like the way they scent their flavored blends. Just the opposite with Gawith & Hoggarth-- LOVE their Lakeland scented stuff but a little bored with the straight Vas. Ymmv, of course.
Revor Plug, only available in the UK I think, is a stout mildly scented dark plug. Easy to prepare and quite cool and smooth, it is also loaded with tobacco flavor and nicotine and will sit your ass DOWN if you're not careful with it. It's flavoring is remarkable, strange, and unique. I love it!