Now, that's the question of the day. I will be honest... we use BOTH, but we're marketers and we have a lot of clients. Once you get stuck using a platform you end up having to keep paying for it and that's the boat that we're in with LeadPages and ClickFunnels.
I will say there's things I love about LeadPages that I wish ClickFunnels has and there's things about ClickFunnels that I wish was available with LeadPages. Personally, I would own both. But, if there was just "one" that I could own it would definitely without a doubt 100% ClickFunnels, because of the power of the funnel functionality and what we've seen in collected revenue through ClickFunnels itself. It's all in one and no more duck taping technology together, which is a real pain in the A$$.