I recently watched a interview with Todd Howard and he said that since the Lord of the Rings was out around the time Oblivion was released , Todd says, made Oblivon more popular. So i ask everyone , what are some comparisons between TES and LOTR?

It's nigh on impossible to create a fantasy universe that doesn't in some way owe credit to J.R.R. Tolkien's work. No doubt the newfound popularity of high fantasy this past decade has not only provided inspiration for the Elder Scrolls, but an influx of new players dazzled by the movie adaption of the Lord of the Rings. But when it comes down to it, I believe the Elder Scrolls has proven itself to be a distinct and notable universe of its own. Whereas the Lord of the Rings tells a story of pure good versus pure evil, the Elder Scrolls floats in the middle, where the good guys aren't necessarily all that good, and the enemy isn't necessarily all that evil. Still, I think Oblivion drew more from typical fantasy archetypes than Morrowind, and Skyrim is following suite. The trailer, for example, is an uninspired introduction dripping with cheese, serious, guttural narrator, background chanting and all. But that doesn't make it bad, by any means. And it certainly has less to do with J.R.R. Tolkien, and more to do with Hollywood.

I think the Lore behind the Tolkien Universe has a great deal of influence in the TES Universe. I am not talking about "The Hobbit" or "The Lord Of The Rings" I am talking about "Silmarillion" and "The Book Of Lost Tales".
EDIT The idea of ancient cultures that were superior to anything existing currently being desroyed by Divinities,with the surviving mortals being trapped in a circular "Universe" to prevent them from destroying everything because of thier nature.The Dwemer are viewed as the Dwarfs of the Tolkien Universe if they were wiped from existence at the technomagical peak of thier culture. People even think the Dwemer look like Dwarfs!

Basically, they both have wholly mythopoeic worlds drawn from the ground up, and both are great on their own but are even better of you dig into the backstory. There are some minor similarities, sometimes done as little self-aware winks by the devs, but the first point is probably the biggest similarity.