PTSOXMONKEY99 said:
It can't go through everything. There have been metals that have been shown to be lightsaber resistant. Not sure about the temperature.
The lightsaber is likely a plasma weapon of some type. Minimum temperature would presumably be in the range of 1000 degrees Celsius, but almost certainly higher. Almost every material in Star Wars is destroyed near-instantly by a lightsaber blade, and, as thus, either has a very low melting point,
or, lightsabers can reach obscene temperatures.
I favor the latter idea, and I also consider the Lightsaber capable of reflecting Chi attacks, (it deflects Force Lightning and shots from TIE fighters, a Hadouken wouldn't be too surreal, especially due to powers such as Kinetite, Tutaminis, and, of course, Force Lightning existing in Star Wars)
Thus, in weapons, Vader is superior. Vader also has armor tough enough to withstand most of Akuma's attacks, at least for a short while, so one shot wouldn't down Vader. However, Vader's lightsaber would cause serious damage to Akuma.
Vader also has superior hax, but there is one way Akuma could win. If Vader was disarmed, and caught off guard, the Raging Demon would
certainly kill Vader, no questions asked. But Vader, still, holds more options to kill anyway, and might be forewarned with his mind reading abilities.
Akuma is the better hand-to-hand fighter by a long shot, but lacks the hax to keep up.
TL;DR: Vader wins, but with some difficulty.
