👆Now then, where to start...
With the obvious, I suppose. On Earth, in-the-atmospheric speed. Here, Supes is attempting to chase down Flash in order to get some answers. Flash is in the lead. They're both going about 2,000 miles per second:
http://i184.photobucket.com/albums/x287/Deywos/Flash_Supes_race1.jpg
Notice what that also says? Superman's perception (sight) is inferior to Flash's at those speeds. They hadn't adjusted to the speeds they were both going yet.
Here, Flash has the combined speed of himself, Jay, Bart, and Jesse. They're entire battle (essentially half of the comic) has lasted less than a second, in which they've circled the globe a dozen times*. Flash says none of the other heroes would be any help. They can't fight at those speeds. Supes included:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_Flash_ampedbattle.jpg
*Geek note: the circumference of the Earth is about 25,000 miles.
This is made pretty evident in Countdown, when Zoom blitzes Batman, Superman, and Diana simultaneously:
http://img215.imageshack.us/img215/8290/zoomsl5.jpg
Returning to his battle with the fully amped Flash...he's still able to blitz him:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_Flash_amp_blitz.jpg
Prior to this, when Wally has the combined speed of Jay and Bart and can accelerate to light speed instantaneously, Zoom is still so fast that he's a blur to Wally:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_Flash_amp_blur.jpg
To a base Wally and Jay, he's so fast when moving that he's completely invisible (he also two shots Jay here, including sending him across the city):
1. http://i184.photobucket.com/albums/x287/Deywos/Zoom_blitzes_Flashes1.jpg
2. http://i184.photobucket.com/albums/x287/Deywos/Zoom_blitzes_Flashes2.jpg
Keep in mind that this is the guy who's perception is better than Superman and, for starters dodge 1500 strikes per second easily, as well as see and dodge the vast majority of Amazo's blows thrown at Flash-like speeds even after being barely conscious:
1. http://i184.photobucket.com/albums/x287/Deywos/Flash_1500.jpg
2. http://i184.photobucket.com/albums/x287/Deywos/Flash_1000.jpg
3. http://i184.photobucket.com/albums/x287/Deywos/Flash_201_0.jpg
4. http://i184.photobucket.com/albums/x287/Deywos/Flash_201_1.jpg
5. http://i184.photobucket.com/albums/x287/Deywos/Flash_201_2.jpg
6. http://i184.photobucket.com/albums/x287/Deywos/Flash_201_3.jpg
7. http://i184.photobucket.com/albums/x287/Deywos/Flash_201_4.jpg
3-7 are just because I can.
Zoom can not only blitz opponents, but block at the same speed - as evidenced here, when he easily staves off an angry Wally's attempted blitz with one-hand:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_blitz_counter.jpg
Here's another reason why Superman's senses won't be able to follow Zoom - as I explained earlier, Zoom temporal powers allow him to simply blink in and out of the current timeline, ghostlike, with full personal control over his exploitation of the timestream itself:
1. http://i184.photobucket.com/albums/x287/Deywos/Zoom_timestream1.jpg
2. http://img397.imageshack.us/img397/2088/z3dx4.jpg
This allows him to do more than just run really fast. He's got ranged attack, which are decently powerful and capable of hitting Superman even if he was in the air:
1. http://i184.photobucket.com/albums/x287/Deywos/Zoom_sonicboom1.jpg
2. http://i184.photobucket.com/albums/x287/Deywos/ZoomvsRogues2.jpg
3. http://img397.imageshack.us/img397/8530/z2jv3.jpg
Ah, and I should bring up that just because Superman is in the air, doesn't make him safe from a Zoom speedblitz:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_heightscaling.jpg
As for the contention that he somehow has baseline human durability, this is not true. Here he is catching a razor sharp boomerang thrown at the speed of sound, easily:
http://i184.photobucket.com/albums/x287/Deywos/ZoomvsRogues1.jpg
And:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_durability.jpg
That looked like it hurt. How will Zoom respond?
1. http://i184.photobucket.com/albums/x287/Deywos/ZoomvsDiana1.jpg
2. http://i184.photobucket.com/albums/x287/Deywos/ZoomvsDiana2.jpg
3. http://i184.photobucket.com/albums/x287/Deywos/ZoomvsDiana3.jpg
A few things to mention from the above rape - Zoom can punch at at least light speed (something Superman can't come close to matching.) And according to Diana yes, he hits harder than Superman. Zoom knocks her from Boston to Paris, from Paris to Egypt, and from Egypt to China. Thousands of miles apart. Does Supes to anything similar to Diana in Sacrifice, when he isn't holding back or pulling his punches and bloodlusted? No. And it isn't a new, one-time showing for Zoom, either. In one of his first appearances he knocks Jay from New York to Dallas with one punch:
http://i184.photobucket.com/albums/x287/Deywos/Zoom_strikingpower1.jpg
Keep in mind that Zoom was a former police officer and FBI agent, thus having governmental combat training. He knows exactly how and where nerve clusters and pressure points act and are:
1. http://i184.photobucket.com/albums/x287/Deywos/Zoom_PP.jpg
2. http://i184.photobucket.com/albums/x287/Deywos/Zoom_PP2.jpg
In the first scan, Bart has the entire Speed Force within him.
As for the laughable notion that Superman's HV is going to make a difference, here's how Flash deals with it:
http://i184.photobucket.com/albums/x287/Deywos/Flash_Supes_HV.jpg
And regarding Supeman's arctic breath...here's how Zoom deals with Captain Cold (absolute zero temperatures with his gun...also note lifting him off the ground one-handed from a standing position, indicating above-human natural strength):
http://i184.photobucket.com/albums/x287/Deywos/ZoomvsRogues3.jpg
Not only that, but Superman's freeze breath is due to the supercompressed air in his lungs and him blowing it out. If any of you think Superman's even going to get the chance to breathe when starting out .5 km apart from each other by now, please see a therapist.
Not that it matters. In addition to him being able to simply blink out of the current time to avoid the cold or heat vision, he can vibrate intangible:
1. http://i184.photobucket.com/albums/x287/Deywos/Zoom_vibration1.jpg
2. http://img185.imageshack.us/img185/3437/zoomvibrate1ie6.jpg
3. http://img187.imageshack.us/img187/6587/zoomvibrate2ew4.jpg
...That's about all the reasons I can conceivably think of why Superman has zero chance in this match. All scans courtesy of Galan and myself.