Best online form builder in 2016

there are more then 30 form builders today, i would think that form builder that worth something is one with extra features.
1-free layout
2-optimization features that will help users to convert betters
3-pricing

this why i choose 4 of the online form builder
by far, my winner is formtitan
https://formtitan.com
formtitan is a pro tool, it come with many good features that will allow any webmaster, or anyone with mouse and a keyboard to create stunning web forms and landing pages.
the formtitan form builder is very flexible and packed with 100+ features.
it also support conditional logic, rules, integrations,payments, and what ever you can think of + an inovative conversion rate optimization tool.

this is my second choice, its a very good one.
https://wufoo.com
like formlogix is arround for 10 years, many webmaster like to use it as well, it has been acuired by survey monkey and they got a very nice support team. the main cool thing with wufoo was the layout , but it has no longer a competition since formtitan launched they're cool interface.

formtype form builder is number 3 in my list, they got a very nice interface!
https://formtype.com
very cool interface, very cool form builder, but as far i understand they need to improve a lot.

another cool form builder which i like is

https://formlogix.com
formlogix is arround for 10 years, many webmaster like to use it, the main cool thing with formlogix is the ability to build any kind of form with any kind of layout, like drawing your forms freely.