OSPF vs ISIS - Which do you prefer & why?

Thu Nov 10 19:43:50 UTC 2016

I prefer OSPF because it is easier to implement when you can just use a 
normal UDP socket instead of dealing with raw sockets...

And at the day work I also prefer OSPFv2 simply because I do not need 
more protocols in the stack. We are running a MPLS network with the 
internet service in a L3VPN. IPv6 is also in the L3VPN. This means the 
underlying network is pure IPv4 and totally isolated from the internet. 
Why make it more complicated by introducing something that is not IP based?

Regards,

Baldur