[1] CNC v FTC hash rate
FTC hash rate according to:
https://featherpool.com/ : 4.86 GH/s
CNC hash rate according to:
http://cnc.dontmine.me:9999/ : 509.16 MH/s
[2] Bigger defacto-pre mine, by this I mean which had the most coin mined in the first day - 2 days so least distributed
Normal distribution:
FTC: 200/2.5 minutes. = 4800/hour
CNC: 88/1 minute. = 5280/hour
However during the first day the blocks are mined super fast because they both started the mine at the lowest difficulty. (I personally consider starting a coin with the lowest difficulty a pre-mine)
I'm not sure which one has been mined the most so far.
[3] what does FTC do better than CNC, (Why should FTC survive if CNC is faster)
No idea about this, to be honest they are not really innovative at all. People mine because they don't want to miss out and then build services to validate their coins. There is nothing wrong with this but I don't think these two coins can fight on merits of their technical capabilities. Its almost like arguing what programming language is best. Its a subjective discussion that will not solve.