Actually, J. R. R. Tolkien, whom I regard as either an ESTj or ISTp (socionics), loved languages apparently.
Gawd.
The man was a professional philologist and professor. His translation of "Sir Gawain and the Green Knight" was a standard for many years and might still be, I haven't checked recently.
It's rather like saying Pete Rose loved baseball or YoYo Ma loved the cello -- just, wow. He was a highly respected professional in a very tiny field regardless of how his Middle Earth works might have succeeded or tanked.
I always saw him as INTP, with an attachment to the concrete world; after all, he fought in a war and went through some hard economic times and didn't have the luxury of always living in his head. he also loved to explore the countryside and lose himself in nature, and it was a crushing blow when England became industrialized; the loss of that world was very powerful to him, and he couldn't escape it, and it comes out when he describes Saruman's ruining of the Shire.
He had the precision of word meanings that's typical of INTP; if you read any of his religious writings and letters, he's got the same style of explanation as an INTP would have; and he's definitely got a coherent large picture of the general overall history of his world that S's don't seem to focus on as much.
He never could even complete his work and was constantly editing and reediting (hence his son Christopher, who is very ST I think, spent years editing his father's notes and papers and releasing them so people could see the "work in progress"). The Silmarilion was never really "finished," he was always unhappy with the ideas and how they balanced each other or didn't.
He suffered horrible writer's block at times, another typical "P" problem; the story sort of had to "write itself" or he couldn't make progress... I think it took 12 years to finish LOTR, and he was stalled at Balin's Tomb for a few years.
You should have seen his arguments with his editors over minor corrections to his text. When everything is "balanced," someone changing something really throws it all off and ruins it; he was very particular about his writing and phrasing, even cantankerous.
And honestly, INTPs tend to be very good at the large epic general overview style of writing, or the mythical feel writing, but not really great at realistic dialog. Tolkien shows a lot of those problems; some of his passages are beautiful and evocative, but much of the Two Towers seemed purposeless and he was sacrificing emotional/dramatic momentum just to appease the mechanics of the story.
He would probably have been the "self-preservationist" style of INTP, not the more dramatic "intimate" sort. He did seem to enjoy people as an idea and loved his children in a "kindly" way and most of all loved to tell them stories, he was also accessible to peers and students at the college on the professional level; but he only ever really opened himself up to a few friends and tended to remain detached anyway, and really liked to close himself up in his house with his wife Edith much of the time to explore his own projects.
I think the contrast shows best when he writes about his religious conversations with Lewis (INTJ), with whom he had been close for some time although later they seemed to grow apart.
EDIT: I wrote all this before I saw Booya's or Night's posts.