In the world of online marketing, ClickFunnels has earned a reputation as an influential sales funnel builder. Despite its eminence, many businesses and individuals are on the hunt for ClickFunnels alternatives for a range of reasons like cost to functionality.

One major alternative is HBA Funnel Builder. Offering the same fundamental functionality as ClickFunnels, HBA Funnel Builder shines by offering a flat fee pricing structure. Unlike ClickFunnels, which comes with different pricing tiers, HBA Funnel Builder offers a single, affordable plan, making it a popular choice among emerging businesses and small businesses.

Another compelling ClickFunnels alternative is Systeme.io. Developed by veteran internet marketer Aurelian Amacker, Systeme.io boosts the traditional sales funnelling experience by integrating tools for email marketing, course hosting, and affiliate management. With a more holistic approach to sales and marketing, Systeme.io helps a strong claim for businesses looking for a more well-rounded platform.

Coming to features, ClickFunnels delivers a huge range of functionalities. Its key features include landing pages, sales funnels, webinars, and membership sites. Moreover, it also has a highly-rated affiliate management tool, which is a major selling point. On the other hand, HBA Funnel Builder, while being a cheaper alternative, meets ClickFunnels' core offering. With a focus mainly on sales funnelling, it may lack in other peripheral features like affiliate management and webinars.

On the flip side, Systeme.io, while matching ClickFunnels' core offering, takes a leap ahead by providing functionalities like email marketing and online course hosting. It's these additional features that make them a preferred option among businesses that need a more comprehensive platform for their online marketing efforts.

In conclusion, while ClickFunnels has a strong standing in the online website marketing world due to its unrivalled features, alternatives like HBA Funnel Builder and Systeme.io are achieving popularity due to their unique propositions. The choice between these platforms lies in your specific business needs and budget. Whether you're a start-up looking for an affordable sales funnel builder or an established business in need of a complete marketing platform, there are options accessible that can meet your needs adequately.