In principle, you would expect the exact opposite (i.e. explicit better than implicit) simply because an explicit model more closely matches the reality of molecules interacting with other molecules rather than some sort of continuum.
In practice, you generally can't achieve full explicit solvation or even a single solvation shell and are limited to working with only a few solvent molecules. While this does allow you to treat some of the specific solute-solvent interactions, the ad-hoc inclusion of some interactions and not others can be problematic. This could potentially lead to a more uniform implicit model performing better for some systems (or all systems if you aren't careful about the arrangement of solvent molecules, conformational averaging, etc).
However, the general consensus in the literature seems to be that, when they can be done, explicit models are the way to go. This 2017 JCTC paper  comparing implicit, explicit, and experimental solvation free energies of organic molecules in organic solvent might be of interest to you. They found that all the implicit models they tested were in worse agreement with experiment than an explicit model, in some cases substantially worse.
- J. Zhang, H. Zhang, T. Wu, Q. Wang, and D. van der Spoel J. Chem. Theory Comput. 2017, 13, 3, 1034–1043 DOI: 10.1021/acs.jctc.7b00169