i can only get one of these two games...im leaning towards fable 3...but i i enjoyed fallout 3 more than fable 2...just looking to get other opinions 

New Vegas. 
 
Fuck kind of question is this?

Listen to The Podcast this Week, It Should Suffice your Anwser..Ill Be Honest in Saying that I Did not beat Fallout: New Vegas in the week I had it From a Rent (Though I had rented a 2nd game as well) I Screwed myself over at a very important point 3 seconds before a man was Shot and a important quest failed so I have up, In Fable 3 I Played the game at 12 In the afternoon and Beat the Main story line in around 6-7 Hours, It Was Enjoyable for the Most part, Choices are Insane during the end...It Makes you think But It Is Extreamly short...To be Honest, I Woulden't Buy Neither...Not Worth it, You Might end up hating Fallout: New Vegas and Fable 3 is just too short.

Which series do you like better? 
 
Beyond that, Fable III obviously.

" i can only get one of these two games...im leaning towards fable 3...but i i enjoyed fallout 3 more than fable 2...just looking to get other opinions  "

Fallout. Plus it is long enough to keep you occupied until you can buy fable III

just ask the cashier if you can have them both for free... who knows they might feel sorry for you

" just ask the cashier if you can have them both for free... who knows they might feel sorry for you "

 
I'm having a ton of fun with fallout so i'd recommend that.  That being said, i've had so many really bad bugs that have got in the way of what should be a goty experience.  Everytime i boot up steam i cross my fingers for a patch to fix it but i still play for hours when one doesn't come up, take that as you will i guess.

I have not played either but I'm buying New Vegas over Fable. 

NEW VEGAS!!!! NOW!!! NOW!!!

Or simply rent them both. One after the other of course then if you still want to buy it, which I doubt, then buy it so you save more money compared to buying both games.

Fallout: New Vegas, so much more to do.

I've been wanting to try out New Vegas for awhile now. But its been getting a little bashing over on /r/gaming for the story. Its not being called bad but based on the posts it seems that most feel that the story is not as "good" as Fallout 3's was.  
 
Anyone care to shed some light on this? Its the only thing really holding me back from getting NV. Would make my own damn thread but that sounds like its doing too much.

Personally I think that Fallout has better atmosphere and is more fun. So I recommend that. But if you like the world in Fable, which I don't, it's probably the game for you.

new vegas

More like get Star Wars: The Force Unleashed 2.... it's supposed to be amazing, and I hear it's really long too

I liked Fable 2 a lot but haven't played Fable 3, so I can't comment of Fable 3 yet. I loved Fallout 3, and I'm 55 hours into New Vegas with less than half the map locations unlocked, at level 29 of 30, and have 11 out of 18 story quest achievements still locked. Value proposition at minimum goes to Fallout.

" More like get Star Wars: The Force Unleashed 2.... it's supposed to be amazing, and I hear it's really long too "

Fallout: New Vegas is most excellent. I have yet to encounter any serious or annoying glitches. It's already looking like everything I could have wanted. I think it's the one you should get.