So I have two accounts. Both have pretty much the same Ronia team subs available to them (except one has an extra chibi instead of regular Ronia).

However, the order they got the monsters is different, so the teams grew a little differently.

Alt runs: Roniax3 (one's chibi), Lu Bu, Haku, (Ronia/LuBu/Beelzorwhoever friend). This team is better-leveled than the other, as it got the team faster and has been running its full-strength team for longer, hence the whole question about this.

Main runs the same (with normal Ronias), but switch Haku for Awoken Minerva. Main completed the team a little later, though, so I got A. Minerva first but she hasn't been awoken yet. Main does HAVE a Haku, but it's still not even evo'd yet because I've been spreading focus on several teams.

In the end, which is probably going to be the best sub more often? Or is it just the usual "eh, it's situational"? D/D Haku is clearly a beast, but having two unbindable subs could be a lifesaver (do wish Minerva had a bind recovery, though). I just wonder if people think it's good to stick with Minerva, or try to switch my focus to quick-leveling Haku so I can get her in place.
(I actually also have a fourth Ronia for the main, but I'm thinking a more useful/survival sub is better than yet another burst, even though the bursts are clearly very useful. Also ran some others, like Belial, before I got more Ronias, but he just doesn't seem quite up to the same level).

I know, Ronia, bike, blar blar, but she serves the purpose while I work up my other teams (need so many awakenings, it's absurd).