>>105980844
>What is the typically recommended drive size these days
Whatever fits your wants and needs for the best value (within reason)
>what RAID do most of you go with?
RAIDz via zfs has been the new hotness for so long it's more like lukewarm and middle-aged.
>>105981108
Physical raid is pretty much obsolete (in zfs or otherwise) unless your CPU is uniquely geriatric