This repeating of the same 'moves' in pretty much every fight is partly caused by the fact, that they fixed the amount of AP per turn. In the first game everything changed. Some things got cheaper and lower cooldown, while you yourself got increased maxed AP, increased starting AP or increased AP per turn, just depending on how you would skill your character. Now skilling your character has hardly any influence on your playstyle, at least regarding attribute. Most attribute are just about dealing more damage and because of that hardly interesting.
Experience
I have hard times understanding, how they reasoned the distribution of experience. Some fights are harder than others, but don't pay you as well in experience. The voidlings in act one give you so much experience with 1000, it pretty odd because they are so easy as opponents, with no kind of armor. While many magister or skeletons, give a much harder fight but less experience.
Also at the end of Act 1 the magisters in the last fight gave about 3k exp, now in Act 2 at the start everything already gives at least 5k, so nearly as much as the bosses gave at the end of Act 1. We just got level 9 and soon afterwards already hit level 10, it fellt kind of irritating.