Brock/Triple H is not pointless. It's a big match that we haven't seen before (we should have seen it 9-10 years ago, but I guess Triple H didn't want to help put over Brock back then) but now we get to. This whole angle with Lesnar and Heyman suing Triple H seems a bit silly but it started off really well with Lesnar breaking Triple H's arm. Of course if it ends with Triple H on top, that would be counterproductive since Brock losing his second match (after already losing his first match) would kill him dead. But the feud and match itself can be great. Not absolutely everything should be about just putting over the younger stars.
And Brock/Rhodes? Seriously? I seriously, seriously doubt we'll even see Brock/Bryan. Unless it ends up as the new version of Diesel/Backlund all over again.