I use Construct 2 (event sheet) and Blueprint in UE4 (node based). I like both systems. Can't say which one I like more. But Blueprint is very very well made. (A bit complicated as everything in UE)
Sometimes I have the feeling the authors of these systems forget that the enduser is not nessesarily a coder. Construct is much better at giving a noob friendly start.
The longer I think about it, the more I like the node based approach. The conncetion lines are extremly helpful to understand what interacts with each other. The visual feedback is more akin to my education as a graphics designer.
A lot of very usefull tools still feel designed from a coder perspective instead from a users (artists, designers). Maybe I am just an interface fanatic :D
Thank you and your team for your hard work. Cant wait to get my hands on it :)