Which dynamic routing protocol do you use to connect servers to your network and why?

Let’s say you have to connect blade chassis to your transport network. There will be a lot of VMs on the chassis and two of them will be virtual routers. And there will be a lot of prefixes (last time I’ve splitted two /24 networks into 80 subnets). Which protocol should you use and why? (I or E)BGP, OSPF, ISIS, RIP?