TS = thread starter = you la.
All 3 cars are very different price brackets. If you can afford a Jazz or a Vios, why on earth is the Myvi in the list? Personally I'd replace it with the Swift or the Kia Forte. The comparison should be :
Jazz vs Vios vs Swift vs Forte.
All 4 are within the same price bracket except Jazz but since you're choosing a 2nd hand one the price won't be too far away.
Personally though, I'd go for a new car. Less 'surprises', warranty is there and possibly cheaper to run initially.
Should check out the Forte. That's the best bang for buck imho cuz for 80k, it'll out-spec any of the cars you mentioned with safety stuff, leather, brakes, etc.