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AS per my experince OSPF the best interior Routing protocol.
1. eigrp hop count is255 and default is100.
2. OSPF is slower than Eigrp but you can perform well it requires that you tweak SPF timers because by default in IOS there is a5 second wait before running the SPF algorithm. OSPF uses areas which means you can segment the network more logically. OSPF can only summarize between areas. OSPF is link state so it has a better view of the entire network than EIGRP before it runs the SPF algorithm. Network administrators will usually be more comfortable with OSPF because it's more commonly deployed.
Eigrp is good for a for a small network (with cisco devices) [recently cisco has drafted Eigrp for open standard.
OSPF is good for a small or large network.
