Vs Battle wiki usually gets their stuff right most of the time, but there are instances where I disagree with how they handle a certain character on the wiki. Like Bayonetta being downgraded down to Large Planet Level and how the Marvel and DC characters were handled on there.
Unfortunately it comes down to if you're using omniverse Ben or not (unless you plan on using Alien X then the outcome is clear). This is because in omniverse Ben has an alien called Feedback who absorbs everykind of energy. Most of the dragonball universe rely on using ki attacks in the form of energy. This is why I also think Kirby could beat Goku because all dragonball is really about is firing beams from your hands (I know there's more to it than that but I'm only simplifing one of the fundamentals of using ki) and when Goku goes for close range Feedback wraps his tentacles around him and shocks him til Goku dies of electrocution. There is also the failsafe that prevents Ben from dying. I wouldn't really like this battle because it's a stomp for both sides depending on which version of Ben you use. Remember the philosphy of Dragonball is constantly breaking all limits but Ben 10 has a more western theme of adapting to all situations. The only thing similarity is transformation but even in that theme there are differences as Goku is constantly evolving one transformation over and over while Ben uses a number of different versatile transformations. To make this the closest you could get to a fair fight I would recommend using ultimate alien ben. That way there is the theme of "constantly evolving transformations". I could help with research but I'm sure Credible Username will be more efficient than me.