Monte-Carlo particle transport codes are commonly used as reference calculation schemes to simulate large systems such as Pressurized Water Reactors (PWR). In particular, the calculation of ex-core flux-related quantities often requires the use of variance reduction techniques, which themselves rely on pre-calculated importance maps. This work proposes a comparison of the performances associated with the use of different weight maps produced by methods based either on Monte-Carlo codes or on deterministic codes, applied to detectors placed in the concrete wall of a PWR. Also, the data published in this paper are public and open data, so that interested researchers can use these published results for benchmark purposes.