I didn't like how every single male npc in Oblivion had a body of a buffed superhero. Even the Adoring fan was ripped. Hey, I only know that cause I pummeled him with arrows and the shoved him in my display case naked. Sheesh don't be so judgemental =P
But yeah, I hope there will be a variety of body shapes that will make the game more realistic. Please, I just want to push a fat man off a cliff, is that so wrong?