The biggest reason to play TES games on PC are still mods and the command console in my opinion. If you aren't interested about them then you can happily play on a console...This is assuming the console version works (PS3 still doesn't).
My TOP reasons to play Skyrim on PC:
- Mods: You can disable handholding features like the Compass Markers
- Mods: You can make dark areas truly dark so torches aren't useless
- Command console: With it you can do things like change your character's appearance later in the game
- Mods and command console: You can fix bugs