Which version do you test? Ego Dragonis or the Dragon Knight Saga (remastered version also for Ego Draconis!)?

In some ways I can understand your frustratings about DII like with the Battle Tower comes a little bit "late" ...
But in comparison with DD:
to be honest, DD I find still better then DII

!
Especially the first big dungeon is very great, but also the sewers of Verdistis and Rivertown market and all other area's are big and fun! ...
The fact that my hero have a reputation ... stealing is also a risk ...
And if players have trouble with finding back the way to solve Quests in DD you can make "flags" and write down your personal note on the Flag!
In D II it is very good to (re)read frequently your questlog to see if soem questlogs are "updated"

That can help a lot so I haven't had troubles with the quests in D II.
In Divine Divinity Intelligence affects the mana pool. I think you're mistaken with Divnity II? But in D II Spirit affects the mama pool. Wisdom is a Skill in DII (And DD too), not the name of a stat.