Honestly if it's pre 52 Supes solos. If it's Wally, he solos. Even Barry way outclasses Quicksilver, but I think Sentry can beat new-52 Superman, so it'd come down to Sentry vs Barry and I give that fight to Sentry.
Voided Sentry solos any incarnation except maybe Wally, not sure how speed steal would work against a matter manipulator.
@Dredeuced: Matter manipulation and Energy manipulation is two differnt things. Some guy made a good point where he said that even though he steals your energy it would be that you can't use your powers either. I don't remember exactly what he said but, he amde a really good point.
New-52 superman has better strength feats but, I'm not sure about durability. Void was kille by thor. Explain Voided Sentry powers.
Sentry/Void solos. Speed steal is ineffective against a character whose molecules are always an instant ahead of the current time line. Quicksilver can go home and watch the fight on the news. Superman and Flash get destroyed here.