dc5 dedinitely...recaros man...
fd2r afaik arent recaros...dunno who makes them.
the sr4 from dc5 r supposed to be very good...n according to.a friend whos had them, the only.seats he thinks are better than the sr4 in terms of comfort n lumbar support would be the sr3 from ek9 n dc2r.
ive only owned recaro fishnets, sr3 n spg in my life...so cant comment on sr4 myself