This paper presents over all comparison of MANET routing protocols, first generalized DSDV, WRP, FSR, DSR, ZRP, AODV, TORA, CGSR, ZRP, SSR, and ABR protocols Routing structure of CGSR is hierarchical and all other have flat, all these protocols are loop free only WRP is loop free but not instantaneous. As reactive routing protocols for mobile ad hoc networks, DSR, AODV and TORA are proposed to reduce the control traffic overhead and improve scalability. WRP, DSDV and FSR have distinct features and use different mechanisms for loop-free guarantee. WRP, DSDV and FSR have the same time and communication complexity. Both DSR and TORA support unidirectional links and multiple routing paths, but AODV doesn’t. In contrast to DSR and TORA, nodes using AODV periodically exchange hello messages with their neighbors to monitor link disconnections. WRP, FSR and TORA have characteristic as reduced topology and all other have full topology, only. AODV and ZRP have multicasting capability other have no such capability.