I will make your decision very easy. I come from a long Java background and just start using RoR a few months ago. And guess what? I am hooked. Every feature an

I will make your decision very easy. I come from a long Java background and just start using RoR a few months ago. And guess what? I am hooked. Every feature and functionality that I want to put in there is already a plugin for it. If not, I can write one quite easily. The documentation could be better but there are plenty of books out there. I am not saying Rails is the ideal web framework but it comes darn close. If you want to get to market soon. I would say RoR is the way to go. Finally, if you are a stickler about writing test cases as us then the good news is that RoR comes with rich testing support. As for hosting, Heroku is a good start.