I'm not concerned about breathability - if it's raining that hard, not much is going to be breathable anyway.
I think you are mistaken not to be concerned - if you prefer the 'breathabilty of a softshell upper layer, you must be aware of the advantages of a similar lower layer.
for heavy rain with occasional short intervals of light/no rain - as happens just as often in the real world as continuous rain, good breathability makes all the difference to all day comfort.
Yes, I get damp legs occasionally through condensation when working hard, but with good breathability, and suitable underlayer (not Kiwis or other cotton heavy stuff) get dry again inside fairly easily. With less breathability you don't. Simple as that. In cold wet weather this makes a lot of difference to morale.
I use Event O/Ts with 3/4 zips, (Rab Bergens). They are way more comfortable (re condensation) in than my old Goretex O/Ts. and a world away in comfort from my summer O/Ts (Golite Reed), which though much thinner are hotter to wear funnily enough due to lack of breathability and venting. (I take the latter for 'just in case' use)
I would next go for Montane Atomics - which have longer zips.
I would be tempted get a pair of Velez Trousers for cooler times but they are currently only available in a length which is a little too short for me.