RhoMobile appears to be leading the race for best in class
Back in February VisionMobile did a comparison between all the available cross platform development tools for mobile devices. They investigated things such as developer satisfaction rates, the software development process and the overall developer experience. This provided some interesting discussion points across the world of enterprise mobility. An follow-up article by Steve Reynolds, an industry expert, analyses cross-platform development tools for enterprise mobility apps and reviews the different areas which must be considered when choosing an environment for developing cross platform applications. (Enterprise Mobility World).
It should be noted that some of the information on RhoMobile is not up to date. RhoMobile supports Hybrid and Web deployments in addition to the Native deployment in the comparison table. Also, RhoMobile supports JavaScript as well as HTML, Ruby, and APIs.
The original VisionMobile article can be found here: (http://www.visionmobile.com/product/cross-platform-developer-tools-2012/)
Mark Jolley