Well there is the "fact" that Spiderman is the most agile character in Marvel and all, and he's the one who looks the most "agile", with guys like Nightcrawler and Beast coming close behind, but agility is dextrous movement (or easy movement), and who can use their body easier than Richards? He's not restricted by tendons, bones, etc, like the other's, if he was in a gymnastic competition, he'd win hands down all the time.
I seem to recall Balder the Brave being extremely fast and agile.
Remember the limited where he developed his god light/heat powers?
In that story line he was able to react at the speed of thought and no one was even able to touch him due to his reflexes and agility. I think if written right he'd be a good match for spider-man in over all agility