jazz is nice in terms of design and reliability. The resale value is insanely overprices. But if you like it's design and don't mind paying for the premium price (even for secondhand) then go for it.

ford focus is also a very nice car and reliable. The only problem with this car is slightly higher maintainence cost compared to jazz. But at least it is not over priced. Apart from this, I would say focus is superior to jazz in every other things. Get this if you don't mind the low resale value and the slightly higher maintenance cost. Not like it's high like BMW or Merc.

It still is a more reliable car cause it is year 2008 compared to the 2005 jazz. 3 years is a lot of difference for a car's age.

Personally, I would go for focus purely due to it's age. Cause I know something called MTBF (mean time between failure). There are parts in cars that no matter how you take care, it had to be replace after x number of days.