Originally posted by Rewmac
You might have a point there and yeah destroying planets are feats true, but SP can do that too we know it and standing up to Galactus (unknown power level), beating the Imperial Guard (unknown power levels) isn't really a true feat to go by.
If a character in an alternate universe displays the exact same powers (mentions confidence, flying around in space unaided, etc.), is in the same position (in Gladiator's case, head of the Shi-ar imperial guard), then we can assume he has the same powers.
If a character is presented differently, such as a different costume, attitude, or displays different powers, then yeah you can say he's not the same. In this case Gladiator was the exact same as his 616 counterpart for all intensive purposes. Exiles has shown characters with different clothing, different attitudes, etc., such as a hippie Hulk with a big peace sign on his jeanjacket. This isn't one of those cases; Gladiator was presented exactly the same as the 616 version, except maybe slightly more muscular looking.