I spend hours thinking about, preparing and setting up my team's..
You THINK and prepare, that's what makes you different and that's what makes it easy for you.
I learned how to play in EA. Then, while exploring and learning the full game about mid way through Act 2 I felt I had a grip on the game and decided that Tactician is too easy (e.g. I played a three strong party and had no problems in getting to Moonrise Towers, with some use of F8), so I switched to playing Honour Mode only, discovering the tail end of Act and all of Act 3 (I avoided spoilers and soluitions online ... most of the time) in HM. I found this tough and I died a couple of times (and restarted) before winning my Gold Die.
I agree that Honour Mode is not that hard BUT only if this is NOT your first playthrough.
Soloing the game is beyond me.
Maybe with the experience I have I could do the game with a three member party.