Like the Krogans and Turians the Humans are one of the most feared races in the galaxy due to their militaristic and greedy history. Many races look as Humans as a greedy and impacient race while, some Turians see Humans as selfish , stubbord , violent , and hot-headed beings. Humans seeme to be stronger than most species in mass effect other than Krogan and Elcors. Turians happen to tend to be slightly stronger yet, slightly slower and less balanced ( can be more easily knocked over ) than humans. Salarians tend to be faster than humans. Vorcha are only slightly weaker than humans yet, slightly faster than humans. The humans have great military strength being one of the  best in the galaxy.