i have no idea how good or bad vitz 2nd gen is so i will not be able to give you a fair comparison between two.
but i do have a honda city 2014 aspire 1.5 prosmatec and i can give my opinion and comparison, i already have mentioned in quite a few posts above too.
1- ride comfort is very good for urban areas, i live in urban islamabad and have not been to rural areas so cant much say. islamabad has alot of bad roads and potholes and in potholes city perform really bad the cultus performs really well on same speed and same conditions.
2- cabin noise is same as honda city.
3- build quality and fittings are good but upon knocking of plastic once can realise its cheapness, but then again if compared to city the build quality is same as city, city has same cheap plastic interior.
4- have not driven it above 110 km i drive with patience and enjoy calmly.
5- car has no underpower feel whatsoever.