If you're talking about Brovel T200 vs. Organon then there is no question as one is properly dosed and the other is mexican pond water. When you compare human grade enanthate (primoteston, testoviron, galenika) then there is room for debate. Test is test in my opinion. If you were to run for example a gram of each then the differences would be so infinitesimal that there is no need for debate.