Hi,
In my environment I have both Hyper-V 2012R2 and Vmware 5.x to latest 6.5 , each have 3 hosts running total 25 VMs serving all kind of applications (SQL, Firewall, RSA...). They are up for more than two year now. I do support on my own learning mostly on YouTube and google search. I do have backup system using Arcronis, or do manual backup provided by the product. Both conversion tool from Microsoft and VMware are not perfect, I found it work most for me when I perform conversion make sure to stop all application services, batch processes, and do not start the new VM after conversion to allow you to check the settings of the new VMs. Also I found that VMware did not work well with application using hardware dongle key.
when you perform P2V make sure your DNS settings and domain name are correct.
I read all comparing information on both product mostly online and do my own research, take notes on problem or errors from others that do the installation or conversion, and just pick one that work good for my environment regarding to operating system (windows or Unix), licensing, in my case my company mostly on Windows environment but I do have a few applications do not support Hyper-v at that time that why I ended up have both VMware and Hyper-V They both are good, I have not had a failure VM before, I did test restore VM on the same host or to different host on both product and it works very well. I will plan to convert the host to Hyper-V 2016 in the future.
Just my 2 cents, and sorry English is not my main language.