Sephiroth's most powerful feats come from when he was merely toying with his enemies.
Now then, Sephiroth has unlimited access to magic, as he does not need to equip materia as of the end of FF7, he can cast that magic without the aid of materia.
Sephiroth's age is unknown, though he is probably between 50-60, possibly older. Vader will use force choke or force lightning and bring Sephiroth I agree with a lot of what you said, but to clarify a few points: ' And yet he was beaten by a spiky-headed brat with a big sword. He can also jump higher, is faster by a great degree, and can generate, hold in, and take out much more power than that of Vader. He has a much vaster amount of skill using magic, summoning, transforming, and causing hallucinations.
Cell said: ' Despite their fighting abilities Sephiroth's sword is alot sharper. No one wins ' Except it takes a long time to summon an asteroid and it's not like Vader is just going to sit there. said: ' While Seph gets choked he summons an astroid down and kills both of them. Vader would slice through the Masamune with ease. 'The Masamune is just an extra long katana it cannot compete with a lightsaber on any level. Said: ' Sephiroth has very powerful magic and has no metallic limbs which cause him to move slower when fighting sephiroth also has a better weapon.