Poll
50%
50%
The only objective (read: not a fanboy response) answer is ‘both.’
Both are equal.
This is assuming one uses the speed feats seen in Classic Thor (when Marvel hadn’t forgotten Mjolnir is not just some dumb hammer to smash away with), and the speed feats in classic Hal (when DC hadn’t stopped seeing the GL ring as ‘the most powerful weapon in the universe,’ when it could even rewrite DNA and give superpowers ...as opposed to nowadays when it mostly just constructs green stuff to be smashed by flying bricks).
Those old depictions had both going many multiples faster than light, and basically portal jumping in some instances.
All of that is mostly forgotten today.