My opinions
Viva:
+ Less fc, better resale value, plenty after market stuff
- over priced, high loan interest, has other better valued options

i10: (test driven d Hyundai model b4 Inokom took over)
+ excellent noise insulation, stable in stock form (went up to 90-100kmh), handles and 'feels' European, good value if looking for s'thing different with features packed
- brand, resale value, questionable post waranttee period maintenece, styling