The first campaign is mainly a tutorial, filled with stationary groups of what must be low-level creatures. I was able to wander around and avoid the groups which looked like they might be hard, saving them for when I had a better hero and army. At which point I steamrollered them as effortlessly as I did all the other parties. So I expect the easiness is intentional, and it will heat up later. I hope. I doubt I am a froggy prodigy.

I did take your suggestion of checking the website. Unfortunately most of that encyclopaedia is still to be compiled, including the actual creature stats.

I will try HOMM3, probably after I finish/get bored with/wait for a patch for HOMM5. I'm going to see if running it in windowed mode will do something for that resolution.