Yea, for his size he is pretty fast, but I doubt he would automatically go for a choke hold, and I still believe Slade is faster. Come to think of it, what really matters is whether or not Slades Promethium blade can cut Colossus. He sliced Superman with it.
Slade would probably beat present day Colossus because they made it so that he is coated by a membrane instead of being solid like he was portrayed back in the old days. I think that classic Colossus would win this because there was a time when even Wolverines claws did nothing to him.
If anyone is interested, it happened back when Colossus was mind controlled by Arcade. Forgot the issue of Uncanny X-Men that it happened in, but here's a scan in case anyone has the entire scene.
Wolverines claws bounced harmlessly off of him in that fight.
I don't know the issue. But Arcade put a whammy on Pete's mind, and he went after Wolverine and Cyclops. Both of them were more of less hard pressed to even slow him down. It was a long time ago. These days Colossus is only covered and not composed of solid Omnium or whatever the metal is called.
Even in the first Secret Wars after being hit by the Beyonder's bolt from out of the blue. we see that he's slagged, but portions of him are still present. The only thing other than Colossus that remained intact was Captain America's shield if I recall correctly. These days, a possessed Wolverine cut through only skin and he bled as a result.
didn't read the full story but it was posted in the Character Ownage thread long ago in terms of post count. Wolverine was possessed and fought Colossus cutting through his Omnium shell instead of it being his entire body. I would say that it happened no less than 4-5 yrs ago. I'll see if there re any scans on goggle.