I just read The Hulk vs. Superman, and The Hulk had no problem keeping up with Superman's super speed. Superman charged (flew actually) towards The Hulk, and The Hulk went to punch him, Superman evaded the first one barely, and then before he could react The Hulk punched him and sent him flying a couple of hundred feet through a store. Then Superman thought.."time to lay down the law", and he flew up behind The Hulk and got his hands around on. Before he could do anything else, the Hulk whacked him, into outer space. In there second fight, Superman really let loose and gave The Hulk everything he had. And this is after The Hulk fought a Hulk clone robot costing millions of dollars, created by Lex Luthor. The Hulk still went toe to toe with him. Superman also said "He's not only big, he's fast! And strong! Stronger then anyone Iv ever gone up against!". Superman has been up against people much stronger physically then himself, so that seems to signify The Hulk is physically stronger then him.
Anyways, back to there second fight. The Hulk had no problem getting ahold of Superman when he was airborn, and they both flell quite a distance. Superman then said "That...actually came close to knocking the wind out of me!" Do I dare hope The Hulk took it harder? No such Luck". And The Hulk had a harder fall, and recovered faster. In the end Luthor shoots Banner's giant gamma ray gun at Superman and The Hulk, and it causes extreme pain in both of them. The Hulk takes it better then Superman though, and Superman helps The Hulk jump away, The Hulk then destroys the machine. I personally think it was shown that The Hulk is not only stronger then Superman, but tougher. Superman still has the speed though, and still isnt weak by any means. He still has the strength to hurt The Hulk, I was just saying...Oh, and the big kicker is that this was Pre-Crisis Superman.......I hope that that clears everything up, specifically how a real Superman vs. The Hulk matchup would and should go...