Nah.
Ruby:
Town to Possibly Island: The Wyvern Grimm made an earthquake (12 to 70 Kilotons). Oscar's shield was calculated to 2.7 to 8 Megatons. (Via scaling to Maidens) you can argue she scales to 1/5 of Salem's power (as from what I have been told, they have a bit of Ozpin's power who is equal to her), which launched a pool of grim sludge into the sky (407 Gigatons, so 81 Gigatons).
Relativistic to FTL: Scales to Adam, who blocked a laser (0.42c). Scales to Winter, who also blocked a laser (4c)
Maka:
Mountain to Possibly Large Country (see note): Scales to Crona, who made the moon bleed (125 Megatons), made a big dome (260 Megatons), and lifted the mouth of the moon (664 Teratons).
Relativistic to Maybe FILL: Scales to Black Star who reacted to light (0.43c, iffier calculations putting this at 2.9c to 3.1c)
When it comes to skill, both should be about equal. Both have undergone extensive combat training and are clearly experts when it comes to scythe combat, which should be a given considering how much cool stuff they pull every other fight twirling those things around. While you could argue that Maka has better showings of beating people up without Soul in her hands, Ruby has fought against the supernatural for a longer total period of time and therefore is more experienced. Thus it is fair to say that Skill cancels out here.
Potential Silver Eyes shenanigans if DB equalizes Madness with Grimm but this one is shaky
As a final note, no, the Silver Eyes would not work on Maka or Soul. They specifically only work on, and in the presence of, Grimm, or people with Grimm physiology attached to their bodies like Cinder, with neither of these qualifications applying to Maka. Even if you argued that, for whatever reason, the Silver Eyes worked on “evil” substances, and therefore could counter the Black Blood, that still does not work as an argument. The Black Blood and Madness are explicitly not inherently evil, with there even being a big character development for Soul about how he should not fear Madness as it’s a neutral force rather than something inherently toxic.
Btw, the Joke is that I stole this arguments for the g1 blog