The concept of the thread is nice, but the whole early access thing that spans the whole forum and every avenue of data gathering the devs are using is already gathering such data that is being asked for, albeit from bits that need articulation.
I think suggestions should have their own sub-forum and be somewhat organized. Ideally said sub-forum would have one topic per distinct idea and people would search for previous data on their new-sounding idea, but I've never seen that work.
Now, in the spirit of this thread's point, I will say that based on my focus on mages, having played a double mage playthrough, I would maybe adjust cooldowns on spells to about as much as the surface they create would last. And lower the hail spell's damage so that its overall damage on magic shield isn't as obscene.
I would also make money a little bit easier to come by, while raising stats on enemies slightly higher than an equivalent balance would require.
Lastly, I would make the memory stat's utility increase, starting with a better ratio of slots per investment to something either 2 per 3 levels, or 3 per 5, mostly leaning towards the 3 per 5. Still thinking on whether the slot count increase is powerful enough as the sole role of Memory.
Haven't really got much data of my own yet, and even that's going to become very irrelevant once the iterations on the game and its balance start cycling.