I like Roubaix cause I read it´s better for not having punctures than Criterium and its life it´s a bit longer.
In theory maybe.
I ride Extreme/Sprinter on the front wheel Carbon/Criterium on the rear. All tubs are aged for at least six months, it's been years since I last punctured one.
Whilst I don't race, I can assure you that I take the bike to much rougher places than the average Spanish road which I consider to be pretty good.
Anyhow, I can get about 6.000 km out of a front tyre, sometimes more. About half of that out of the rear one. Doing 10 to 15.000 km a year depending on the weather mostly.
Vittoria's SC are pretty much a carbon copy of Veloflex's Criterium. Both companies are related, Vitto is more high tech and made in Thailand whereas Veloflex is Vittoria's old company hence more traditional and decidedly better if you'd ask me.