In reply to Mr Lopez:
Thanks for that website - gives me some ideas.
As for the book collection - very kind offer but I've got too many books already! Hence mainly reading on my Kindle these days. Will be doing some downloading off that list.
Browsing that top 25 I think it might be a matter of differing taste - I've read many of the books/series in that list eg. Malazan series, Song of Ice & Fire, Gormenghast, Kingkiller Chronicles, LOTR obviously, Farseer Trilogy (I thought quite childish/poorly written), Blade Itself (found quite hackneyed/childishly written), Gentleman Bastards series, Jonathan Strange & Mr Norrell, Thomas Covenant (well written but didn't personally like the style), American Gods, Empire Trilogy.
For what it's worth I'd hold Robert Jordan's writing up against any of them except Tolkein, Peake and Susannah Clarke. His story is more 'traditional fantasy' than many and his portrayal of women characters leaves something to be desired (most of them are annoying!), but for the absorbing landscape and portrayal of his world and a pervading kind of Macarthyist paranoiac threat that anyone could be a servant of the enemy, I rank Wheel of Time with the best of them.