FWIW, you might want to take the Bochser recommendations with a grain--or a pound--of salt:
1) Hybrids are evaluated strictly as pure fighters; specifically, INT is completely ignored. That alone invalidates the Bochser hybrid analyses for me due to the way I build and use hybrids: I want strong spell casters, so I bring up INT and the most-useful combat-related attribute first.
2) The analyses are based almost solely on how quickly a given race/class combination maximizes several--typically 5--attributes. So a given race is declared "better" than another because it maxes all the selected attributes by, say, level 43 instead of level 39. As we all know, in a full party you're going to finish the game before anyone except (maybe) non-magic classes even sees level 30.
3) Specifically in the case of the Bishop, Bochser includes PIE as the second-most-important attribute. In fact, it's essentially irrelevant.
Now, to be fair, those analyses were done shortly after the game was released, and thus relied a lot on the documentation in the manual and in the game, rather than on a lot of actual play experience. As we've found, the advertised info doesn't always match real-world conditions: Piety really doesn't matter, STR is more important than SPD for a Monk, etc. So read the Bochser analyses in the light of how *you* plan to develop *your* characters; understand the patterns and issues; but don't blindly pusht the "I believe" button.