Third person for me TOTALLY. As people have commented it's great to admire your costumes and armour and it's a lot more exciting to me.

I rethought my playstyle thanks to you guys in the Oblivion forum.

That... and TPP is my thing because I am compelled to see my character's feet.... lol

..jk

Save for aiming, not really.

I tend to switch around with which one I prefer, but I tend to play on both modes. Doing 80% first-person right now.