Just have to mention the signal transmission in the cable.
For IP cameras it can be lossless as it is built on a digital 1´s and 0´s and
are quite simple to amplify.
Analog video transmission works only with the relation between
0.35 - 1.4 volt, and as soon it hits the cable it starts to decline or loose quality fast, long cables gets poor resolution, color... quite complex to amplify.
So IP gets my wote, analog or digital.
Dont think I seen one analog amplifier or camera built for security purpose/market that live up to its own specifications.
/Peter