The Level Up wizard is much more flavorful in its academic roots.Somewhat to my chagrin, the Wizard.
Not because I don't think the Wizard should be that. They absolutely should. It's literally their specialty.
Rather, because the Wizard is incredibly awful at actually supporting the FLAVOR of the class. It doesn't have a single research- or academia-related class feature. It doesn't have anything special with regard to skill or study. Literally the one and only thing it gets which isn't "Cast More Spells" is halving the gold/time costs of copying spells. Not researching--copying. The Wizard is an extremely excellent plagiarist, without a single bit of research-related content. I find this absolutely appalling. It's not like I'm asking for ultra-specialization or something really narrow and specific. This is literally the foundational concept of the class, "person who does academic research to learn spells"!
I have a very different relationship with my wizards and sorcerers.After playing Wizard, Sorcerer is pretty miserable. Sorcery Points are too few, and there's just levels when they don't get any new spells, while Wizards are always getting at least two, and can copy a lot more. Known spells just seem like worse than prepared spells in every way as well.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.