How about KBT Pure? No, but really; those aren't that different in the whole scheme of things. If you are attached to dedicated arrow keys, ins/del, page up/down, etc, then the Race is the only of the three small boards that has them. Poker is the only one without backlighting options (although the Pure isn't quite US available yet...).
If portability or size in general don't matter to you, why do you look at these small boards? If I were indifferent to those aspects I'd go for one of the much easier-to-get Leopolds or, as you already own, a Filco.
Please keep in mind they are all Cherry boards and (I'm fairly sure) all the Poker, Race, and Pure boards use Cherry stabilizers: otherwise, there isn't much difference other than layout.