Comparing oik-testimonials vs testimonials-widget

Out of the box comparison

Feature	oik-testimonials	testimonials-widget
Post type	oik_testimonials	testimonials-widget
Fields	Author Excerpt	Job Title Location Email Company URL
Taxonomies	Testimonial type	Categories and Tags
Shortcode – Slider	bw_testimonial	testimonial_slider
Shortcode – List	use oik’s shortcodes	testimonial
Widget	No	Yes
API documentation	Yes	API.md
Pro Version	No	From $29.99

Extending oik-testimonials to satisfy your needs

To extend oik_testimonials you can add oik-types, which is dependendt upon oik-fields, then add any fields you like to the oik_testimonials post type. These will be displayed by the [bw_testimonials] shortcode when you use the _ (underscore) option of the format= parameter You don’t need to develop any code to do this.

Extending testimonials-widget to satisfy your needs

To extend the testimonials widget you can write code to hook into the multitide of filters it provides. You could consider adding oik-types and oik-fields to define new fields. But if you did that you may as well just use oik-testimonials. You know it makes sense!