Picanto have an actual automatic gearbox while cultus ags have a controller to shift gear automatically. Picanto have better quality and finishing as compare to cultus for sure, looks are subjective, both cars looks great, cultus does look bit roomy.
Picanto spares & maintenance is quite expensive and KLM is greedy as hell. Another issue is low resale at the moment. Cultus have better fuel economy, reasonable spares & maintenance cost and it resale is very good.
Swift is great car of course better than both but its a fuel guzzler and resale is not good.