It's been several years since reading it, but _Regency Buck_ left me cold, too. I haven't read _Spanish Bride_ or _Infamous Army_ yet.

Freddy & Hugo rock!

_Masqueraders_ is definitely Georgian & a fun romp.

_Foundling_ is one of my favorites. I don't want to spoil it for you, but will look forward to your review with great anticipation.

Have you read _Reluctant Widow_ yet? It's not top-, but is solid second- or third-tier.