The year is 2013. How is Rails VS. ASP .Net MVC 4 faring?

Hi,

I’m not trolling here! I’ve been a .Net Web forms developer for 6 years
now. Looking to build startups and considering RoR or ASP .Net MVC 4.

I Googled and found most articles which compares the two date back to
2010.
I suspect that NuGet have gone quite far by now but am not sure if it is
as
good as Gems yet.

So I wonder if there is anyone here who has tried both and can give and
objective comparison of the two.

Cheers,
Fai