I'm also not in the UK but I think the fall from favor of GL's songs is pretty much universal. I hardly ever hear anyone do his stuff here.
Although I don't perform professionally, I've got a few GL songs in my lyrics "cheat sheets" to do when the opportunity arises. Currently, I've got "Early Morning Rain", "Steel Rail Blues", "Summertime Dream" (with slightly modified lyrics), "Long Way Back Home" and "Race Among the Ruins". I've also attempted "Canadian Railroad Trilogy" and "Wreck of the Edmund Fitzgerald" at times but those are such long songs that they don't really appeal to most people unless they're hard-core GL fans.

As far as my personal favorite singers/songwriters though, GL has a lock on second place (Ian Tyson is no. 1 in my book).