Remember Vegeta expected the three new androids to be a lot stronger than Nineteen, yet he was confident he could defeat them even if they fought him all together. That implies a massive gap.
Nineteen << Expected Eighteen <<< Vegeta
Or maybe it's even bigger. Come to think of it, I don't think Vegeta looked as if he would start out at full power if he fought all three androids together. So maybe it's:
Nineteen << Expected Eighteen <<< Vegeta (warming up) << Vegeta (full power)
Nineteen << Expected Eighteen <<< Vegeta
Or maybe it's even bigger. Come to think of it, I don't think Vegeta looked as if he would start out at full power if he fought all three androids together. So maybe it's:
Nineteen << Expected Eighteen <<< Vegeta (warming up) << Vegeta (full power)