If I was just starting out I would recommend starting with LeadPages so you have pre-made designs which are less customizable so you can get your head around what’s going on. But if you’ve had a bit of experience or are in the more advanced level, then I think getting a mid ranged ClickFunnels plan would be more appropriate. Either way, I don’t think you should cancel one account before the other, until you have had some time to play around and try them both out.
Let’s say at the top of the funnel you included a place to sign up for a newsletter (and that included a free guide or audio from you when the register) but now weeks have passed and you haven’t sent a single newsletter. Well, friends, you’re dropping the ball. The middle of the funnel is where your customers latch on and get comfortable with you—so don’t let them go! This is where they should understand who you are and why they should invest their time in you.
Now your marketing automation funnel is giving you a boost at every stage: It responded within five minutes of their first contact, and that helped get you the chance to make your pitch. Now, after the pitch, you're ready to stay in contact and respond to objections in a friendly, targeted way. (And if they love the pitch, automation can help you stay in close touch until closing.)

Clickfunnels: Review, Demo, Pricing and Features: