Okay what are you saying in the following quote then? Even after rereading it several times I can't seem to suss out your alternate meaning.
I meant exactly what I wrote, that both options are bad. You invented the "you're an optimizer and neither option would be ever be worth playing" part yourself. To me that seems like a gratuitous insult, moving from discussion of game design to an incorrect claim about playstyle.
Sometimes even people who know better play bad combinations for the challenge, because they want to not overshadow other players, or just because they like the novelty of the theme.
Based on our previous discussions in this thread, I can even see why you would think that, but it's still just your opinion. As we've discussed, one of my design goals for my hybrid system is not to utterly invalidate existing potential builds. You should be able to run a hybrid Barbarian/Wizard at the same table as a multiclassing Barbarian/Wizard without one of them feeling like they made a terrible choice (they should both be in the same ballpark).
This isn't the case in your system. Your system makes the hybrid Barbarian/Wizard far better than the multiclassed Barbarian X/Wizard X. Unlike the Cleric/Druid, he's really not sacrificing
anything from either class. He's not even very MAD.
Based on my (admittedly limited) test data, I nailed it. You disagreed with that design goal when we discussed it earlier, and that's your prerogative, but I haven't changed my mind with regard to it.
That's fine. I'm not trying to make you change your mind about your design goal.
As I understand it, you feel that it is okay to provide an option that would turn existing non-optimized options into trap options. I don't. It makes sense that you might feel that way, since from reading about your table I've gotten the impression that your players are character-creation-efficiency-experts, and therefore exceedingly unlikely to fall prey to a trap option. However, as I've mentioned, I play with a wide array of play styles, including casual players. As a result, it makes very good sense from where I'm standing to eliminate all the trap options I can and avoid introducing more.
And yet, that is exactly what you have done with the Barbarian/Wizard, and arguably with the Paladin/Sorcerer as well (double ASIs without more MADness on a stat-heavy class = pure win).
The most accurate way to phrase my position is that there will always be trap options, and I'm resigned to that fact--I'd rather spend my energy ensuring that multiclassing (1) doesn't create any dominant options (doesn't invalidate any existing viable pure class or combination), but still (2) is not dominated by existing options (has its own niche of things that it's good at).
If a trap combination like Cleric 11/Druid 9 which is already dominated by other PHB combinations like Druid 15, also gets dominated by 11th level Cleric/Druid, that matters less to me than ensuring that all Barbarians don't turn into Barbarian/Wizards and Barbarian/Rogues. (I mean that from a game-design standpoint. From a roleplaying-at-the-table perspective, it's a given that not all Barbarians will
want to be Barbarian/Wizards or Barbarian/Rogues.)