I too am one of those multi-dextrous types...
I prefer macs... a mac mini and a 11.6" air consume 90% of my computing time, but i dabble in everything... i have 3 android tablets, 2 android phones, 2 windows tablets, 1 windows laptop, 1 linux laptop.
amazingly enough, no iphones, no ipads, no ipods. can't stand that limited closed up hardware, and the need to connect to their store to get anything installed on it.
back to the topic, one windows tablet is 8.1, the other is 10. like the 10 version better. the windows laptop is windows XP, and hasn't been turned on in at least 2 years.
oh, and i write computer software for a living... which might be why i collect these things like baseball cards.