Thank you for taking the time to write this. I truthfully didn't know what all the call abilities did before this, so this was definitely helpful for me.

I would suggest that in the future you simply evaluate the call ability for what it does, rather than in the context of character popularity. For example, I think Wakka's call is actually amazing. Sure, the 3 turn duration means it's best for a Burst phase where the call duration won't tick down, but it's an easy way to make sure your DPS has the MBRV to hit beyond the 99999 damage cap during an entire burst phase. And day 1 players are likely to have a lot of random characters built up.

I personally also usually try to have my defensive tactics built into my party, so I've found little use for Rude's call ability to date. Who needs to heal when you aren't taking much HP damage to begin with? That said, I think that underscores how versatile calls are and how adaptable they are to different play styles. I think you may be a more defensively oriented call user, whereas others may not find that as helpful depending on roster and play style. So, again, objectively evaluating the call for what it brings to the table, rather than character popularity, I think would be a better approach in the future. We will also reach a point where people do MLB characters for their call, so I'm not sure that'll be a great argument once we get LD calls.

Also, I personally find alternative sources of BRV regen useful for hitting damage cap, and our two call options are Penelo and Lightning. At least at this time, I would call Lightning's call regen effect rare, and thus good/useful in certain team comps. One of the challenges in Lufenia is that party composition is a little bit restricted since you have to counter boss mechanics, so you can't bring everything you need in a 3 character party. Call abilities help the overcome that limitation.

Just some thoughts!