Quick answer
In most cases, GNWL is better. Remote-location quota is smaller, so RLWL can move more slowly.
When GNWL matters
GNWL should be judged by passenger-wise status, chart timing and recent movement in your PNR.
When RLWL matters
RLWL can behave differently by quota, train route and cancellations. Always check live status close to departure.