What Do You Do?

For the last couple of days I have been pretty torn on what I should do. No, this is not some major life decision, but I still have not been able to decide. This week I received Fallout 3: Game of the Year Edition as a gift. I have been waiting for this edition to come out for months and have wanted to play Fallout 3 since well before I had a 360. The problem is that now that I have it I feel that I should finish Oblivion first. For some reason I feel like I should finish one massive game before really getting into another. So, I started to wonder if I am the only one that feels this way.

Ok, back to Oblivion:

level: 12
Oblivion gates shut: 3
Places Found: 45
Quests Completed: 59
Knights of the White Stallion: Knight-Errant
Arena: Bloodletter
Thieves Guild: Shadowfoot
Mages Guild: Magician
Fighters Guild: Apprentice
Blades: Knight Sister
Dark Brotherhood: Eliminator
Order of the Virtuous Blood: Sister
Court of Madness: Tourist
Current quest: Blood of the Divines/Allies for Bruma

Yeah I know, that part was a boring read, but here is the gist of it. I am getting towards the end of the main quest line and some of the faction quest lines, but I still have a long ways to go in other factions. I also have not even begun Shivering Isle. I probably could finish the main quest line sooner than later, but it would probably be better if I did more faction quests in order to level up. It seems to me that this is all going to take a lot longer than a couple of days (26 of 60 achievements unlocked). Especially since Allies for Bruma, while being an optional quest, takes a lot of time.

The Elder Scrolls IV: Oblivion: Game of the Year Edition (PS3)
Elder Scrolls IV: Oblivion Game of the Year Edition(360)
The Elder Scrolls IV: Oblivion Game of the Year Edition  (PC)
Fallout 3: Game of The Year Edition(PS3)
Fallout 3: Game of The Year Edition  (360)
Fallout 3: Game of The Year Edition(PC)