The trade at 190 is something like 58 mattack attack or 234 attack rate, 234 evasion, and 176 defense rate for 200 dex/rest int or 1k int/rest dex, respectively. It's pretty clear to me which one is preferable.

Going over minimum str makes no sense. The minimal damage reduce you gain will make effectively 0 difference. Especially considering the attack rate/defense rate/evasion you are sacrificing (or mattack even).