Toriyama

 

I suppose if Beerus’ strength is a 10, [Super Saiyan] God would be right about 6. Only, Saiyans rapidly increase in strength as they fight against strong opponents, so the longer they fought, the more that gap would shrink, and it might even be possible for them to eventually turn the tables. Incidentally, I guess Whis would be about a 15.
http://www.kanzenshuu.com/translations/battle-gods-animanga-akira-toriyama/

Ghostface

 

So, basically this is people not accepting what the creator has made because...it's not directly said in the movie? Look at every single interview with Toriyama about the movie, specifically Beerus, and you'll see a pretty clear vibe that the God of Destruction is the richest, grandest mother*bleep*er to come out of the Z world (obviously not including Whis because he was a surprise at the very end).

http://www.kanzenshuu.com/translations/battle-gods-animanga-akira-toriyama/

http://www.kanzenshuu.com/translations/asahi-shimbun-digital-akira-toriyama-interview/

In the second interview, the man questioning Toriyama calls Beerus the "mightiest foe" and Toriyama doesn't hesitate to accept that descriptor, almost like it's exactly what Beerus is.

http://www.kanzenshuu.com/translations/battle-gods-blu-ray-dvd-message/

In that one he says Beerus is "rumored" to be the "strongest there is," which, if you can comprehend literary tones, is basically an admittance to him being the best thing around.

You want something more concrete?

http://www.kanzenshuu.com/translations/battle-of-gods-promotional-pamphlet-2-akira-toriyama/
http://www.kanzenshuu.com/translations/battle-of-gods-theatrical-program-akira-toriyama-comments/

Akira Toriyama

 

Apparently, it’s been 17 years since the last animated Dragon Ball movie! For all the animation up to now, I’ve basically just left everything up [to the staff], so this is my first try at being involved starting from the story’s creation. The key words this time, “God of Destruction Beerus” and “Super Saiyan God”, were suggestions from the scriptwriter, but they were good ideas for presenting a crisis for the main characters, who had grown so strong that they’d reached a point where there was nothing higher. After first deciding on Beerus’s character design and background, I tried thinking up an original story, imagining it as though [the manga's] serialization had continued. What’s more, the God of Destruction Beerus, who I drew the design for myself (something I don’t usually do), is a terrifying opponent so overwhelmingly strong that he surpasses the dimension of the previous enemies. But it’s my trademark to not let things get too dark. At the very least, I’m satisfied that it’s been finished up as a very entertaining piece of work.

By the way, the battle scenes in the second half are particularly overwhelming! I was moved because the presentation exceeded my expectations. Just as you’d expect, Japan’s animation is superb! Everyone on the staff, you really did a great job!! Well, please enjoy the first Dragon Ball in a long time!

That's not "promotional mumbo jumbo," that's direct confirmation from the original author of the series and man behind Beerus' conception. Denying that that's a testament of Beerus being superior to Gohan-Boo is rather ridiculous and ignorant. Hell, according to Toriyama, Gohan-Boo isn't even in the same dimension as Gohan-Boo.

None of that outright says Beerus is stronger than Vegetto, and I'm not shamed for admitting that. But it does paint a clear picture that he is the strongest enemy the Zet Senshi have ever come across. Just because the movie doesn't say, "OMG THIS CAT IS STRONGER THAN MAJIN BOO!1!!1!!" doesn't mean that isn't case. We have confirmation from the supreme overlord of the entire series for that.

EDIT: Apparently Goku does say that Beerus is the strongest guy he's ever faced, though I don't have the exact line.

Itachi

Dec 8 2013, 05:54 AM

I put Beers higher than SSJ3 Vegetto since they would have to have considered fusing and going SSJ3 if they thought such a thing was plausible.

Darth Pyrus

Dec 8 2013, 06:32 AM

Perhaps, but there were two pairs of earrings and both were crushed. That's the only reason they were being handed out. There were none left after that.

But I agree, Fusion should've at least come up.