Ok so, according to the description of the both the first one holds up to 60C and the second one is 65C (on the site description)
Also according to the above, the Apex one is more reliable and newer model -
"Alphacool's Apex VPP doesn't use a spherical bearing and relies on a ceramic axle. The motor's coils have been moved from the inside to the outside. These changes have the effect that the pump is fundamentally more stable and smoother running, and any vibrations that arise have been significantly reduced."
So everyone (on internet) is suggestive that Molex pumps are better. But the Apex is SATA...i am confused here.
Which one to choose ? = I would like to have as realible as possible pump that is also quiet! (and to freeze the water but that is for another post... : D )