Neither of which are any good, no offense.
The relationship between Sabes and Wolvie is Sabertooth represents what Wolverine is fighting not to become, and Wolvie represents what Sabes could have been. As a result, Wolvie both avoids him but also feels resonsible for him, and Sabertooth as made it his business to taunt and terrorize Wolvie whenever he can. Making them brothers would not change the realtionship at all, so why do it.
I don't see why either of the options are bad ones, other then the fact that they support a theory you don't like. I think both ideas open up interesting possibilities for the Wolverine/Creed relationship. If you could give me a reason why you think it's a bad idea, other than saying you think it is, then I think I'd understand better.
Now, I have no idea why you think Wolverine feels responsible for Sabertooth, that doesn't make any sense at all. However, there relationship has been one of "dark vs. light" Sabes is what Wolverine could become if he ever chose to stop fighting his dark side. However, writers now a days have all but abandoned that plot of Wolverine fighting against his dark side, showing him being quite content with killing, which makes Sabertooth's character somewhat unneeded.
Making Sabertooth Wolverine's brother would add some more layers to him. We now have a reason that Sabertooth has all this fueled hatred against Wolverine. We also could have alterior motives for Sabertooth's continued obsession with him. Not only that, but the standing theme, of Wolverine somewhat accomplishing to shed his dark side, would add onto the other layers I've discussed. Sabertooth already has that hatred of being the "second hand" brother. Wolverine always got everything he wanted, and now Wolverine looks like he's achieved what Sabertooth thought that both of them wouldn't, shedding his animalistic side.
Why? Its exactly what they represented. Its why Wolvie feels an overwhelming attraction to Jean and hatred of Creed, they remind him of a past love and rival.
Makes as much sense as when Sabes was rumored to be his father. Doesnt make it not stupid.
Wildchild must be the second cousin twice removed
Because Jean and Rose, while similar, were still different. Jean didn't go out of her way to protect and be a big sister figure to Wolverine. Dog on the other hand, acted exactly the way Sabertooth was, looked like Sabertooth, has an abusive father like Sabertooth, and had a history that would fit into Sabertooth's backstory perfectly.
Besides that, Wolverine would have to meet Sabertooth within the next few years after running off into the wilderness, since they both have memories of eachother many years before their Weapon X days. (We could debate on weather or not these memories are fabricated, but that wouldn't get us anywhere since the writers keep saying they did and didn't happen as of late.) But what are the odds that Logan escapes Dog, then a year or two later runs into someone who
*looks Just like him,
*acts just like him
*and is obsessed with Wolverine, Just like dog!
Fit perfectly for a lot of rivals' storyline. The Joker and Batman arnt brothers. They dont need to be. You can hate someone and have lots of history with someone without them being your brother.
That's completely different. Batman and Joker have been in culture for years yes, but in terms of comic time they've known eachother for 10, maybe 15 years max. Wolverine and Sabertooth have a history going back decades, over half a century even, depending on the writer. Since Origins gave us a character who looks like Sabertooth, acts like Sabertooth, and (if revealed to be Sabertooth) explains why Sabertooth is the way he is today, I see no reason why Dog being Sabertooth is a bad idea.