So i just finished the Theives guild and i was just walking around the Imperial city going into peoples houses hoping that some one will have something of value. So i want to know where/who do you like to steal from?

Personaly for fun i like to steal from gaurds and gaurd barraks, especially in the Imperial City. I like the "haha your supposed to stop me from stealing meanwhile isteal form you" feeling. That is just for the fun of it when im stealing for gold i like to go to local armourers or weapon smiths and my favourite is the Red Diamond Jewlery store in the Imperial city.

So again where/who do you like to steal from?

to do the thieves guild quest line i would always rob the mages guild halls for soul gems. easily got all the gold before i did the first real job lol

If you have OOO, stealing from the castles in each town is boss. They have gold and silver trinkets, ceremonial weapons, rare books, all kinds of good stuff. Some of it is in locked display cases, much of it is just lying around on shelves. And it's all very light to carry. I advanced in the guild primarily by fencing this stuff.
I especially liked stealing from the count in Skingrad because I didn't like him.

I love stealing from Red Diamond Jewellery. Fighting my own poverty and the superficiality of others at the same time! It easily nets me around 500 fenced gold for the Thieves Guild.

This is what I always do before the first job: Go to Skingrad Castle, find the wine cellar and steal every single one of those bottles. I then run around stealing various food items. That done, I run to Bruma to visit Orgnof and before I know it, I fenced 1,000 gold before I even did the first job. XD

As for my favorite place? I don't really have one. It's just when I feel like it.

The chest beside the Imperial Legion Commander's desk.

I hit the jewellery story in Imp city way back; that was great. Haven't been back -- do the valuables get replaced?

Schmoe: you have me intrigued; I'll have to check out the Imp Commander's chest.