The best

At first, I thought there was no way I would be paying for a contact form plugin. Maybe a couple of bucks, but nothing more.
I took the plunge and bought the pro version because I wanted Google Captcha.
It’s awesome. So worth the money I upgraded to the Business version. Very easy to create forms and the ability to re-use fields in different forms is great. You can customize everything to make it fit with your theme.
Simon is very helpful on support, answers quickly and thoroughly. Highly recommend.