From a post to Baen's Bar Honorverse dated June 19, 2008:

The League vs the Star Empire of Manticore: How effective will RMN ships-of-the-wall be compared to SLN units?

    Once war is declared, how effective -- or, rather, how much more effective -- will Manticoran ships-of-the-wall prove to be in comparison to Solarian units?

    Well, I think that most of you should be able to begin making a fairly reasonable estimate of the answer to this question in your own minds, based on what you've already seen. I'm not going to go into additional detail at this time about this point, for several reasons. One is that I don't intend to give away now what may turn out to be surprises in the books later. Another is that there's still room for at least some qualitative shifts in the SLN's capabilities as I work on the next few books. And yet another is that as I get into the storyline and the ships start coming into play, there's a certain synergy that kicks in. I genuinely don't know in full detail ahead of time exactly how various navies are going to stack up against one another. I don't try to set things up that way. Instead, I decide what capabilities I'm going to give to the two sides, then sit back to see how those capabilities work out in play. That being the case, I'm really not prepared to give any definitive answers at this early stage in the process.