Have you checked out CamelPhat 3 and CamelSpace? They do a lot more than just filtering, so perhaps you categorize them as multi-effects rather than filters, which is fair enough. However, CamelPhat3 does offer three filters (configurable band pass, plus multi-mode filter), including ten different filter types plus an envelope follower. CamelSpace's filter can be modulated from a step sequencer. They are first and foremost multi-effects, but if you're looking for a filter, then its worth checking them out to see if they meet your needs, especially given that you can pick up the PhatSpace bundle for around the price of one of these filters.Soundwise Volcano is the best filter plugin out there. Like some other people, I've tried them all. Including Frantic.
Ben

