We all have our inspiration. Take a look at mine.
Oh, does it have to be only ONE? Well then, I'd have to choose… William Shakespeare. His plays and sonnets AMAZE me to the bones! His style of writing has always inspired me to write and explore the written word and I bet having lunch with such an artistic person would be a great experience!
I'd ask him how he came up with the sonnets, where he gets inspiration, and how he managed to be one of the best English poets of all time. Now that would be a day worth lining up for.