i'v made a few hc sorcs, the ones without max block are all dead, the ones with max block are alive (i even lost a sorc with base dex, 80 str and the rest in vit at lvl 89 to hell pindle in 2 hits).
i'd advise you to go for max block, my current sorc has stats something like 80 str, 150 dex, 300 vit, base energy and with + items i get to around 150 str and 240 dex.
i'm using tals belt, str/res ring, dex/res ring, perfect sandstorm trek, dex/resist/skill ammy, stormshield which brings my stats up alot.
if you really want to stay alive through lags etc. then i'd also advise on using a single point in energy shield and a single point in shiver armor.
this is all of course down to personal preference though, this just happens to work best for me, it might get you killed
