Looks are subjective to individuals's preference. However, Zest is the best overall package in CS segment as of now. If you'll assign points to all CS contestants based on Looks, Drivability, Safety, Handling, Power etc. Zest will be the clear winner.
Only thing lacking, is the reliability on Tata brand for PV. That will go away once WOM about Zest spreads and it will take its own time.