Ya, though I never played 3e, that is really a clear demarcation between early D&D and neo-D&D. You kinda have to look at HP, AC, saves etc. differently before and after 3e/WotC
VERY TRUE!!!
Ok, so I guess it is time for a derail...
Think of this: If you hit 60-70% of the time, "success" is really felt more when someone manages to
defend, because it is a rarer occurrence, and thus feels more special because it is less likely. Hitting more often also slows down the game more with the DM and players having to adjust HP over and over again. This is especially true for DMs when controlling 5 or more monsters/NPCs.
Now, if you adjust things the
other direction, where you hit 35-45% or so, definitely less than 50/50,
hitting becomes more exciting because it is rarer. Also, you can reduce HP for monster by
half at the same time and the game plays pretty much the same when it comes to combat.
I'm sure you might recall my prior threads on the topic and the house-rules our online group used for months with such things in mind? It worked great! People were hitting enough to not get frustrated, combat was faster in terms of bookkeeping but number of rounds was about the same (slightly less), and when you
got hit it was a more frightening experience--you were actually concerned more quickly about your rapidly depleting HP. Spells took on more
oomph and the increased power made them feel more special as well.
PS you should have looked at 4e, it was what brought me back to D&D after not getting into 2e & 3e (I started with 1e and BECMI), It felt more like D&D to me than 2e or 3e. But everyone has different feelings of course.
I glanced at it once--it was much too "fiddly" for me. I prefer fewer options and more imagination, personally, but I am glad it got you back into the game.