I'm not married to a 18/20v platform so happy to jump brands. best deal right now looks like the ridgid gen5x impact at $160. the 3 speed ryobi kit that was $100 a couple of weeks ago was very tempting, my home depot ran out though. i do have a 18v lithium makita drill/impact set. will really only be using this to swap my summer/winter wheels and some basic car maintenance. car is later model year so no big repairs but brakes and suspension work will be needed in 2 yrs or so.
In the same boat and also have other Makita tools and way too many batteries.
I'm leaning towards the Ryobi so I can pair it up with the inflator and take it on four wheeling rides or on road trips. If Makita comes out with a mid torque I'll get that too and dedicate the Ryobi impact and inflator to our side by side. Less expensive if I ever have to do a hike out or leave it on the trail or whatever.
I've thought about going with a battery adapter so I can run the Ryobi tools on my Makita batteries but I don't think that will happen.
Or I might just go with Milwaukee as they have enough 18V tools that interest me to justify another battery platform.