Man, almost
any RWD car with sporting aspirations is a better handler than the majority of FWD vehicles. I'm selling my R next year for some rear-drive goodness

As for the RX-7 specifically compared to the R, no contest the Rex is a much superior handling beast. RWD, low roll center, limited-slip differential, only 2800 lbs. with 255 hp... the list goes on. Just look at the AutoX designations: the ITR is in D Stock and the FD3S RX-7 is placed in SS (highest stock category).