Not sure which way to go with this.

Looking to start a new project but not sure whether to build the api (which will hook into the new content service) using webapi or to just build out classic controllers and return JSON.

Any pointers? 

As far as i can see, so long as i keep my API RESTful then WebAPI ought to be the way to go but i just know i might come up against something out of the ordinary and then things start to descend into a mish mash.

What do others think?  Be interested to hear your opiniions.