Of the three options you have shortlisted, all are practical and comfortable options which will serve you well. Since pillion comfort is a priority, try to go for a bike/variant which has a single seat. Also, take your preferred pillion with you for a two-up test ride on all the machines. This will help you gauge each bike's strengths and weaknesses for yourself.
You should also consider the Bajaj Pulsar N160 in the same category for its smooth engine, plush suspension and comfortable seating position.
If you are open to extending your budget by a little bit, you can also opt for the Royal Enfield Hunter 350, which will give you a different riding experience than these commuters but will simultaneously also be a comfortable machine.

