I'm gonna go inverse and say I think Beat the World sounds better than Emergence Vibe so far, but both are kinda eh, tbh.
I mostly say this about Emergence Vibe because Miki's been singing the same kind of cool song since 2011 and ML is especially guilty of it, imo. I would have much rather Miki gotten a cuter song this time around kinda like Tomoka did with Iku. I dunno, I'd just like more variety.