What was one major difference between the powers of the emperors in the east and the west of Rome?

Answer 1

From the 3rd century until 395 there were alternations of periods with sole emperorships (one emperor ruled the whole of the Roman Empire) and periods of co-emperorships where two emperors shared power with one taking charge of the east and the other taking charge of the west. . Apart from two exceptions, when there were two emperors, they were either father and son or brothers. There were no differences in the powers of the two emperors. After 395 the politics of these two parts of the empire begun to become separate. This was because the western part begun to disintegrate under the weight of the invasions by the Germanic peoples and lost political cohesion. Eventually the emperor in the east became more powerful. However, this was not because the emperor in east gained more or special powers. It was because the east remained relatively stable, whereas the west became very unstable and there were many usurpations.

Answer 2

They were able to expel the incoming Eurasian peoples who overran the Western Empire.