'm willing to accept that JohnWittle means it literally, although, seriously? You'd trade Shakespeare and James Joyce--Neil Gaiman and Tolkien and Ursula K. Le Guin--for HPMOR? It's pretty hard for me to wrap my head around that.

• Shakespeare I would trade for those weeks of my highschool life back, to spend on learning something more valuable.
• James Joyce is an author I have heard of and have an intuition that I would experience social pressure against me if I did not assign him high status. From the reviews I read of Ulysses I would pay money to not have to read it. I don't object to other people reading it or enjoying the sophistication.
• Tolkien's stories I would trade for MoR. His stories are rather dull. I wouldn't trade his world or, especially, the overwhelming influence he had on fantasy fiction in general and elves in particular.
• Neil Gaiman's work I would trade, but reluctantly. I enjoyed Stardust. But Gaiman's work is more typical and substitutes more easily found. Extreme Rational characters and worlds are overwhelmingly rare.
• Ursula K. Le Guin? Haven't read. Is her work closer in style and significance to Joyce, Shakespeare, Gaiman or MoR? If one of the last two I'd add her to my to read list.

I'm not sure "You'd trade?" is the right comparison to make. Perhaps "you would assign higher status to" or "you believe is more sophisticated and polished artwork" would give you the answer desired.